December 29, 2017

BMO Funds

BMO Funds

Prospectus

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.65% for Class I and 0.90% for Class A through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A
1 Year	$ 66	$ 587
3 Years	$236	$ 799
5 Years	$420	$1,028
10 Years	$954	$1,685

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 56% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in a broadly diversified portfolio of common stocks of large-sized U.S. companies similar in size, at the time of purchase, to those within the Russell 1000 ^® Index. The largest company by market capitalization in the Russell 1000 ^® Index was approximately $881.3 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same date was approximately $10.0 billion. The Fund may at times focus its investments in one or more sectors.

The Fund invests in stocks that exhibit less volatile stock price patterns when compared to stocks in the Russell 1000 ^® Index. The Adviser selects low volatility, undervalued stocks using a unique approach which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. The Adviser’s investment process begins by using tools to rank stocks based on expected risk and expected return and construct preliminary portfolios with the use of fundamental factors. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus

Equity Funds

1

on stock risk and company fundamentals through both quantitative and qualitative analysis to balance risk management with return generation. This strategy seeks to provide the Fund with lower downside risk and meaningful upside participation relative to the Russell 1000 ^® Index.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Management Risks. The Adviser’s judgments about the attractiveness, value, level of expected volatility, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results. In addition, the Adviser’s strategy may limit the Fund’s gains in rising markets.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may

increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2013-2016)

2	Equity Funds

subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Income Risks. The Fund can distribute to shareholders only what it earns. Therefore, if the amount of interest and/or dividends the Fund receives from its investments declines, the amount of dividends shareholders receive from the Fund also will decline. In addition, depending upon market conditions, an income producing common stock that meets the Fund’s investment criteria may not be widely available and/or may be highly concentrated in only a few market sectors. This may limit the ability of the Fund to produce current income.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2012-2016)

6	EQUITY Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

Acquired Fund Fees and Expenses represent the pro rata expense indirectly incurred by the Fund as a result of its investment in other investment companies. Total Annual Fund Operating Expenses shown will not correlate to the Fund’s ratio of expenses to average net assets appearing in the Financial Highlights tables, which do not include Acquired Fund Fees and Expenses.

(3)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not

incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.75% for Class I, 1.00% for Class A, and 0.60% for Class R6 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R6
1 Year	$ 78	$ 598	$ 62
3 Years	$247	$ 810	$200
5 Years	$431	$1,038	$349
10 Years	$964	$1,695	$784

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 62% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in a broadly diversified portfolio of common stocks of large-sized U.S. companies similar in size, at the time of purchase, to those within the Russell 1000 ^® Value Index. The largest company by market capitalization in the Russell 1000 ^® Value Index was approximately $461.2 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $9.1 billion. The Fund may at times focus its investments in one or more sectors.

8	EQUITY Funds

The Adviser selects stocks using a unique, value-oriented approach focusing on high quality companies with long-term capital appreciation potential that are available at reasonable prices, which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be

more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

EQUITY Funds

9

Class I — Annual Total Returns (calendar years 2009-2016) ⁽¹⁾

(1)

The bar chart previously reflected the performance of the Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, performance set forth in the bar chart reflects the performance of Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 11.71%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	9/30/2009	15.92%
Worst quarter	9/30/2011	(17.26)%

	1 Year	Since Inception
LLCVFI (reflects deduction of fees and no deduction for sales charges or taxes)	16.37%	14.47%

(1)

The table previously reflected the before and after tax performance of Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, before and after tax performance set forth in the table reflects the performance of the Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A and Class R6 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Russell 1000 ^® Value Index (Russell 1000 ^® Value) measures the performance of those companies included in the Russell 1000 ^® Index with lower price-to-book ratios and lower forecasted growth values.

The Lipper Large-Cap Value Funds Index (LLCVFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. David A. Corris, Jason C. Hans, and Ernesto Ramos, Ph.D., co-manage the Fund. Mr. Corris, Head of Quantitative Stock Selection and a Managing Director of the Adviser, joined the Adviser in 2008 and has co-managed the Fund since April 2013. Mr. Hans, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2008 and has co-managed the Fund since February 2012. Dr. Ramos, Head of Quantitative Equity Strategy and a Managing Director of the Adviser, joined the Adviser in 2005 and has co-managed the Fund since February 2012.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50. Eligible retirement plans, fee-based wrap programs, and other registered investment companies generally may open an account and purchase Class R6 shares by contacting BMO Funds U.S. Services.

10	EQUITY Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 1.00% for Class Y, 0.75% for Class I, 1.00% for Class A, and 0.60% for Class R6 through

December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class Y	Class I	Class A	Class R6
1 Year	$ 102	$ 77	$ 597	$ 61
3 Years	$ 325	$246	$ 809	$199
5 Years	$ 566	$430	$1,037	$348
10 Years	$1,257	$963	$1,694	$783

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 75% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in common stocks of large-sized U.S. companies similar in size, at the time of purchase, to those within the Russell 1000 ^® Growth Index. The largest company by market capitalization in the Russell 1000 ^® Growth Index was approximately $881.3 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $11.3 billion. The Fund may at times focus its investments in one or more sectors.

The Adviser selects stocks using a unique, growth-oriented approach, focusing on high quality companies with sustainable earnings growth that are available at reasonable prices, which combines the use of proprietary analytical tools and the

12	EQUITY Funds

qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Due to their relatively high valuations, growth stocks are typically more volatile than value stocks. Further, growth stocks may not pay dividends or may pay lower dividends than value stocks. This means they depend more on price changes for returns and may be more adversely affected in a down market compared to value stocks that pay higher dividends.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

EQUITY Funds

13

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)	Acquired Fund Fees and Expenses represent the pro rata expense indirectly incurred by the Fund as a result of its investment in other investment companies. Total Annual Fund Operating Expenses shown will not correlate to the Fund’s ratio of expenses to average net assets

appearing in the Financial Highlights tables, which do not include Acquired Fund Fees and Expenses.

(3)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.99% for Class I, 1.24% for Class A, 1.49% for Class R3, and 0.84% for Class R6 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R3	Class R6
1 Year	$ 102	$ 621	$ 153	$ 87
3 Years	$ 323	$ 881	$ 478	$ 276
5 Years	$ 561	$1,160	$ 827	$ 480
10 Years	$1,246	$1,956	$1,811	$1,071

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 139% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in value-oriented common stocks of medium-sized U.S. companies similar in size, at the time of purchase, to those within the Russell Midcap ^® Value Index. The largest company by market capitalization in

16	EQUITY Funds

the Russell Midcap ^® Value Index was approximately $34.2 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $7.2 billion. The Fund may at times focus its investments in one or more sectors.

The Adviser selects stocks using a unique, value-oriented approach focusing on high quality companies with long-term capital appreciation potential that are available at reasonable prices, which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service

base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Corporate Restructuring Risks. Securities of companies that are involved in company turnarounds or corporate restructurings may present special risk because of the high degree of uncertainty that can be associated with such events. It is possible that the market price of securities of companies involved in company turnarounds or corporate restructurings may be subject to significant and unpredictable fluctuations.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even

EQUITY Funds

17

though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2009-2016) ⁽¹⁾

(1)

The bar chart previously reflected the performance of the Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, performance set forth in the bar chart reflects the performance of Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 7.03%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	9/30/2009	21.90%
Worst quarter	9/30/2011	(20.57)%

Average Annual Total Returns through 12/31/16 ⁽¹⁾

	1 Year	5 Years	Since Inception
LMCVFI (reflects deduction of fees and no deduction for sales charges or taxes)	18.45%	14.60%	8.34%

    

	1 Year	Since Inception
Class A (Inception 5/27/2014)
Return Before Taxes	17.08%	6.99%
Class R3 (Inception 5/27/2014)
Return Before Taxes	16.75%	6.70%
Class R6 (Inception 5/27/2014)
Return Before Taxes	17.62%	7.42%
RMCVI (reflects no deduction for fees, expenses or taxes)	20.00%	8.19%
LMCVFI (reflects deduction of fees and no deduction for sales charges or taxes)	18.45%	6.42%

(1)

The table previously reflected the before and after tax performance of Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, before and after tax performance set forth in the table reflects the performance of the Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A, Class R3, and Class R6 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Russell Midcap ^® Value Index (RMCVI) measures the performance of those companies included in the Russell Midcap ^® Index with lower price-to-book ratios and lower forecasted growth values. Those companies also are included in the Russell 1000 ^® Value Index.

The Lipper Mid-Cap Value Funds Index (LMCVFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. David Corris and Thomas Lettenberger have co-managed the Fund since October 2016. Mr. Corris, Head of Quantitative Stock Selection and a Managing Director of the Adviser, joined the Adviser in 2008. Mr. Lettenberger, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2005.

18	EQUITY Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.
(2)	Acquired Fund Fees and Expenses represent the pro rata expense indirectly incurred by the Fund as a result of its investment in other investment companies. Total Annual Fund Operating Expenses shown will not correlate to the Fund’s ratio of expenses to average net assets appearing in the Financial Highlights tables, which do not include Acquired Fund Fees and Expenses.
(3)	BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not

incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.99% for Class I, 1.24% for Class A, and 0.84% for Class R6 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R6
1 Year	$ 102	$ 621	$ 87
3 Years	$ 346	$ 903	$ 299
5 Years	$ 610	$1,206	$ 529
10 Years	$1,363	$2,064	$1,190

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 157% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in growth-oriented common stocks of medium-sized U.S. companies similar in size, at the time of purchase, to those within the Russell Midcap ^® Growth Index. The largest company by market capitalization in the Russell Midcap ^® Growth Index was approximately $33.6 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $8.4 billion. The Fund may at times focus its investments in one or more sectors.

20	EQUITY Funds

The Adviser selects stocks using a unique, growth-oriented approach focusing on high quality companies with sustainable earnings growth that are available at reasonable prices, which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Corporate Restructuring Risks. Securities of companies that are involved in company turnarounds or corporate

restructurings may present special risk because of the high degree of uncertainty that can be associated with such events. It is possible that the market price of securities of companies involved in company turnarounds or corporate restructurings may be subject to significant and unpredictable fluctuations.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Due to their relatively high valuations, growth stocks are typically more volatile than value stocks. Further, growth stocks may not pay dividends or may pay lower dividends than value stocks. This means they depend more on price changes for returns and may be more adversely affected in a down market compared to value stocks that pay higher dividends.

EQUITY Funds

21

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired

Fund Fees and Expenses) from exceeding 0.99% for Class I, 1.24% for Class A, 1.49% for Class R3, and 0.84% for Class R6 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R3	Class R6
1 Year	$ 101	$ 620	$ 152	$ 86
3 Years	$ 369	$ 924	$ 524	$ 322
5 Years	$ 657	$1,250	$ 920	$ 577
10 Years	$1,478	$2,170	$2,031	$1,306

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 148% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in value-oriented common stocks of small-sized U.S. companies similar in size, at the time of purchase, to those within the Russell 2000 ^® Value Index. The largest company by market capitalization in the Russell 2000 ^® Value Index was approximately $6.3 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $734 million. The Fund may at times focus its investments in one or more sectors.

The Adviser selects stocks using a unique, value-oriented approach focusing on high quality companies with long-term

24	EQUITY Funds

capital appreciation potential that are available at reasonable prices, which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Corporate Restructuring Risks. Securities of companies that are involved in company turnarounds or corporate restructurings may present special risk because of the high degree of uncertainty that can be associated with such events. It is possible that the market price of securities of companies involved in company turnarounds or corporate restructurings may be subject to significant and unpredictable fluctuations.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Small-Cap Company Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of

EQUITY Funds

25

investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2012-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 5.81%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	3/31/2013	13.96%
Worst quarter	9/30/2015	(10.65)%

	1 Year	Since Inception
Russell 2000 ® Value Index (reflects no deduction for fees, expenses or taxes)	31.74%	9.57%
LSCVFI (reflects deduction of fees and no deduction for sales charges or taxes)	27.00%	7.34%

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A, Class R3, and Class R6 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Russell 2000 ^® Value Index is a market-weighted, value-oriented index of those small companies included in the Russell 2000 ^® Index with lower price-to-book ratios and lower forecasted growth values.

The Lipper Small-Cap Value Funds Index (LSCVFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers . David Corris and Thomas Lettenberger have co-managed the Fund since October 2016. Mr. Corris, Head of Quantitative Stock Selection and a Managing Director of the Adviser, joined the Adviser in 2008. Mr. Lettenberger, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2005.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50. Eligible retirement plans, fee-based wrap programs, and other registered investment companies generally may open an account and purchase Class R3 and Class R6 shares by contacting BMO Funds U.S. Services.

Sale of Fund Shares. Please contact your plan administrator or recordkeeper in order to sell (redeem) Class R3 or Class R6 shares from your retirement plan. You may sell (redeem) your Class A or Class I shares of the Fund on any day the New York Stock Exchange is open for business using one of the following

26	EQUITY Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.90% for Class I and 1.15% for Class A through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A
1 Year	$ 92	$ 611
3 Years	$ 432	$ 984
5 Years	$ 796	$1,381
10 Years	$1,821	$2,488

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 90% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in a broadly diversified portfolio of common stocks of small-cap U.S. companies similar in size to those within the Russell 2000 ^® Index. These small-cap companies, at the time of purchase, generally have market capitalizations in the range of companies in the Russell 2000 ^® Index. The largest company by market capitalization in the Russell 2000 ^® Index was approximately $6.6 billion as of October 31, 2017, and the median market capitalization of companies in the Index as of the same period was $851 million. The Fund may at times focus its investments in one or more sectors.

The Adviser selects stocks using a unique approach which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. The Fund is designed to be a “core” fund that seeks to combine both value and growth characteristics within the small-cap universe. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary

28	EQUITY Funds

portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Core Style Investing Risks. The returns on “core” securities may or may not move in tandem with the returns on other styles of investing or the overall stock market. Thus, the value of the Fund’s investments will vary and at times may be lower or higher than that of other types of investments.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Small-Cap Company Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its

price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2014-2016)

EQUITY Funds

29

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)	Management Fees have been restated to reflect current fees.
(3)	Acquired Fund Fees and Expenses represent the pro rata expense indirectly incurred by the Fund as a result of its investment in other investment companies. Total Annual Fund Operating Expenses shown will not correlate to the Fund’s ratio of expenses to average net assets appearing in the Financial Highlights tables, which do not include Acquired Fund Fees and Expenses.

and remain the same. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A
1 Year	$ 102	$ 621
3 Years	$ 318	$ 877
5 Years	$ 552	$1,152
10 Years	$1,225	$1,936

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 197% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in growth-oriented common stocks of small-sized U.S. companies similar in size, at the time of purchase, to those within the Russell 2000 ^® Growth Index. The largest company by market capitalization in the Russell 2000 ^® Growth Index was approximately $6.6 billion as of October 31, 2017 and the median market capitalization of companies in the Index as of the same period was $1.01 billion. The Fund may at times focus its investments in one or more sectors.

The Adviser selects stocks using a unique, growth-oriented approach focusing on high quality companies with sustainable earnings growth that are available at reasonable prices, which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. In general, the Adviser believes companies that are undervalued relative to their fundamentals and exhibit improving investor interest outperform the market over full market cycles. As a result, the Adviser’s investment process begins by using tools to rank stocks based on expected returns, construct preliminary portfolios with the use of fundamental factors, and manage risk. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on company fundamentals through both quantitative and qualitative analysis to balance return generation with risk management.

EQUITY Funds

31

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Corporate Restructuring Risks. Securities of companies that are involved in company turnarounds or corporate restructurings may present special risk because of the high degree of uncertainty that can be associated with such events. It is possible that the market price of securities of companies involved in company turnarounds or corporate restructurings may be subject to significant and unpredictable fluctuations.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Small-Cap Company Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares

traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Due to their relatively high valuations, growth stocks are typically more volatile than value stocks. Further, growth stocks may not pay dividends or may pay lower dividends than value stocks. This means they depend more on price changes for returns and may be more adversely affected in a down market compared to value stocks that pay higher dividends.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

32	EQUITY Funds

Class I — Annual Total Returns (calendar years 2009-2016) ⁽¹⁾

(1)

The bar chart previously reflected the performance of the Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, performance set forth in the bar chart reflects the performance of Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 15.60%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	12/31/2011	19.83%
Worst quarter	9/30/2011	(23.91)%

Average Annual Total Returns through 12/31/16 ⁽¹⁾⁽²⁾

(1)

Because Class A shares have not been offered for a full calendar year, the information provided represents returns of Class I shares. Class A shares (without the reflection of the payment of sales charges) would have substantially similar annual returns because the shares are invested in the same portfolio of securities. The performance of Class A shares is expected to be lower than Class I shares because Class A shares do charge a front-end sales charge and have higher Total Annual Fund Operating Expenses.

(2)

The table previously reflected the before and after tax performance of Class Y shares. On June 2, 2017, the Fund’s Class Y shares were converted to Class A shares. As a result of the conversion, before and after tax performance set forth in the table reflects the performance of the Class I shares rather than Class Y shares. The Fund no longer offers Class Y shares.

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Russell 2000 ^® Growth Index (Russell 2000 ^® Growth) measures the performance of those companies included in the Russell 2000 ^® Index with higher price-to-book ratios and higher forecasted growth values.

The Lipper Small-Cap Growth Funds Index (LSCGFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. David Corris and Thomas Lettenberger have co-managed the Fund since October 2016. Mr. Corris, Head of Quantitative Stock Selection and a Managing Director of the Adviser, joined the Adviser in 2008. Mr. Lettenberger, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2005.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50.

Sale of Fund Shares. You may sell (redeem) your shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

EQUITY Funds

33

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.85% for Class I and 1.10% for Class A through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A
1 Year	$ 87	$ 607
3 Years	$ 361	$ 917
5 Years	$ 657	$1,250
10 Years	$1,497	$2,188

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 74% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in equity securities of companies located in the countries included, at the time of purchase, in the MSCI All Country World Index, which includes 23 developed and 24 emerging market countries. The Fund normally invests at least 40% of its net assets in securities located outside the United States and is diversified among at least three countries. The Fund may invest in companies across all market capitalizations and may at times focus its investments in one or more sectors.

The Fund invests in stocks that exhibit less volatile stock price patterns when compared to stocks in the MSCI All Country World Index. The Adviser selects low volatility, undervalued stocks using a unique approach which combines the use of proprietary analytical tools and the qualitative judgments of the investment team. The Adviser’s investment process begins by using tools to rank stocks based on expected risk and expected return, and construct preliminary portfolios with the use of

International and Global Funds

35

fundamental factors. All purchases and sales of portfolio securities, however, are subjected ultimately to the investment team’s qualitative judgments developed from their cumulative investment experience. The entire process is designed to focus on stock risk and company fundamentals through both quantitative and qualitative analysis to balance risk management with return generation. This strategy seeks to provide the Fund with lower downside risk and meaningful upside participation relative to the MSCI All Country World Index.

In determining where a company is located, the Adviser relies on the country where the company is incorporated, but also may consider the country where the company’s revenues are derived and the primary market listing for the class of shares to be purchased. Although the Fund invests primarily in companies located in countries included in the MSCI All Country World Index, the Fund may invest up to 20% of its net assets in companies located in countries not represented in this Index.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Currency Risks. To the extent that the Fund invests directly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Management Risks. The Adviser’s judgments about the attractiveness, value, level of expected volatility, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results. In addition, the Adviser’s strategy may limit the Fund’s gains in rising markets.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder

36	International and Global Funds

redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2014-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 11.23%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	6/30/2014	5.64%
Worst quarter	9/30/2015	(5.08)%

    

	1 Year	Since Inception
MSCI All Country World Index (reflects no deduction for fees, expenses or taxes)	8.48%	2.68%
LGMCCFI (reflects deduction of fees and no deduction for sales charges or taxes)	8.39%	2.57%

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The MSCI All Country World Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of developed and emerging markets.

The Lipper Global Multi-Cap Core Funds Index (LGMCCFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. Jay Kaufman, Ernesto Ramos, Ph.D., and David Rosenblatt co-manage the Fund. Mr. Kaufman, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2010 and has co-managed the Fund since December 2013. Dr. Ramos, Head of Quantitative Equity Strategy and a Managing Director of the Adviser, joined the Adviser in 2005 and has co-managed the Fund since its inception in 2013. Mr. Rosenblatt, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2012 and has co-managed the Fund since December 2016.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50.

Sale of Fund Shares. You may sell (redeem) your shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

International and Global Funds

37

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

Other Expenses for Class R6 shares are based on estimated amounts for the current fiscal year.

(3)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 0.90% for Class I, 1.15% for Class A, and 0.75% for Class R6 through December 31, 2018. This

expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R6
1 Year	$ 92	$ 611	$ 77
3 Years	$ 338	$ 896	$ 291
5 Years	$ 604	$1,201	$ 524
10 Years	$1,365	$2,065	$1,191

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 77% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in equity securities of companies located in countries outside of the United States. The Fund invests primarily in companies that are located in the countries included, at the time of purchase, in the MSCI EAFE Index, which includes developed countries outside of North America. However, the Fund may invest up to 20% of its net assets in companies located in countries not represented in this index, including emerging market countries. Equity securities in which the Fund may invest include common stock, preferred stock, depositary receipts, rights, warrants, and exchange-traded funds (ETFs). The Fund also may invest in convertible securities (fixed income securities convertible into shares of common or preferred stock). In determining where a company

International and Global Funds

39

is located, the Adviser primarily relies on the country where the company is incorporated, but also may consider the country where the company’s revenues are derived and the primary market listing for the class of shares to be purchased. The Fund may invest in companies across all market capitalizations and may at times focus its investments in one or more sectors.

The Fund’s Adviser focuses on companies that it believes are fundamentally strong, have attractive valuations, possess growing investor interest, and may outperform the overall equity market. Using a unique approach which combines the use of proprietary analytical tools and the qualitative judgments of the investment team, the Adviser selects equity securities that it believes will provide higher returns than the MSCI EAFE Index, its benchmark index. As part of this process, the Adviser considers numerous factors including (but not limited to) valuation, earnings quality, earnings growth potential, and earnings and price momentum. The Adviser invests in those securities it believes will provide a better return relative to their risk than other securities. The Adviser may sell a security for numerous reasons, including if a company’s fundamentals deteriorate or the Adviser believes a company’s fundamentals will deteriorate, if another security appears to provide the potential for a better return relative to its risk, if the Adviser believes the security is no longer attractively valued, or if the Adviser believes the security will no longer help the Fund achieve its investment objective. The Adviser also may sell a security to manage the size of a holding or sector weighting or to fund redemptions.

The Fund may invest in forward foreign currency exchange contracts, a type of derivative instrument, for purposes of hedging its exposure to non-U.S. currencies. From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders

generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Convertible Security Risks. Convertible securities are fixed income securities that the Fund has the option to exchange for equity securities at a specified conversion price. Consequently, the value of the convertible security may be exposed to the stock market risk of the underlying stock, or may be exposed to the interest rate or credit risk of the issuer. Because both interest rate and market movements can influence its value, a convertible security is usually not as sensitive to interest rate changes as a similar fixed-income security, nor is it as sensitive to changes in share price as its underlying stock. Convertible securities also are subject to credit risks that affect debt securities in general.

Currency Risks. To the extent that the Fund invests directly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Exchange-Traded Funds Risks. By investing in an ETF, a risk exists that the value of the underlying securities of the ETF may decrease. In addition, the market price of ETF shares may trade at a discount to their net asset value or an active trading market for ETF shares may not develop or be maintained. ETFs in which the Fund invests typically will not be able to replicate exactly the performance of the indices they track. The Fund also will bear its proportionate share of the ETF’s fees (including management and advisory fees) and expenses.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes.

40	International and Global Funds

Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Forward Foreign Currency Exchange Contracts Risks. Forward foreign currency exchange contracts are subject to currency risks. A forward foreign currency exchange contract also may result in losses in the event of a default or bankruptcy of the counterparty. Forward foreign currency exchange contracts may limit potential gain from a positive change in the relationship between the U.S. dollar and foreign currencies.

Geographic Concentration Risks. To the extent the Fund invests a substantial amount of its assets in securities of issuers located in a single country or geographic region, the Fund’s performance may be more susceptible to any changes to the regulatory, political, social or economic conditions in such country or geographic region.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows the Fund’s total

returns for the 2016 calendar year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar year 2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 20.55%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	9/30/2016	6.21%
Worst quarter	3/31/2016	(3.93)%

(1)

Because Class R6 shares have not yet commenced operations, no performance data is available. Class R6 shares are expected to have substantially similar annual returns as Class I shares because the shares are invested in the same portfolio of securities. The performance of Class R6 shares is expected to be higher than Class I shares because Class R6 shares have lower Total Annual Fund Operating Expenses.

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to

International and Global Funds

41

investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A and Class R6 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Morgan Stanley Capital International Europe, Australasia, Far East Index (EAFE) is a free-float adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets, excluding the United States and Canada.

The Lipper International Multi-Cap Core Funds Index (LIMCCFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. Jay Kaufman, Ernesto Ramos, Ph.D., and David Rosenblatt co-manage the Fund. Mr. Kaufman, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2010 and has co-managed the Fund since its inception in 2015. Dr. Ramos, Head of Quantitative Equity Strategy and a Managing Director of the Adviser, joined the Adviser in 2005 and has co-managed the Fund since its inception in 2015. Mr. Rosenblatt, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2012 and has co-managed the Fund since December 2016.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50. Eligible retirement plans, fee-based wrap programs, and other registered investment companies generally may open an account and purchase Class R6 shares by contacting BMO Funds U.S. Services.

Sale of Fund Shares. Please contact your plan administrator or recordkeeper in order to sell (redeem) Class R6 shares from your retirement plan.You may sell (redeem) your Class A or Class I shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

Tax Information

The Fund intends to make distributions that may be taxed as ordinary income or capital gains for federal income tax purposes.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

42	International and Global Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information. Investors purchasing and selling Class F3 shares may be subject to costs (including customary brokerage commissions) charged by their adviser, which are not reflected in the table below.

Shareholder Fees (fees paid directly from your investment)
	Class Y	Class I	Class A	Class R6	Class F3
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	None	None	5.00%	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of shares redeemed within 18 months of purchase) (1)	None	None	1.00%	None	None
Redemption Fee (as a percentage of amount redeemed, for shares held less than 30 days)	2.00%	2.00%	2.00%	2.00%	2.00%
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Management Fees (2)	0.73%	0.73%	0.73%	0.73%	0.73%
Distribution (12b-1) Fees	None	None	0.25%	None	None
Other Expenses	0.57%	0.32%	0.32%	0.17%	0.17%
Total Annual Fund Operating Expenses	1.30%	1.05%	1.30%	0.90%	0.90%
Fee Waiver and Expense Reimbursement (3)	(0.11)%	(0.11)%	(0.11)%	(0.11)%	(0.11)%

Shareholder Fees (fees paid directly from your investment)
	Class Y	Class I	Class A	Class R6	Class F3
Total Annual Fund Operating Expenses After Fee Waiver and Expense Reimbursement (3)	1.19%	0.94%	1.19%	0.79%	0.79%

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

The management fee disclosed is a blended fee based on the Fund’s total assets as of August 31, 2017. Under the investment advisory agreement, the Fund pays a management fee of 0.735% on the Fund’s first $500 million of average daily net assets, 0.72% on the next $200 million of average daily net assets, 0.62% on the next $100 million of average daily net assets, and 0.56% on assets in excess of $800 million.

(3)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 1.19% for Class Y, 0.94% for Class I, 1.19% for Class A, 0.79% for Class R6, and 0.79% for Class F3 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class Y	Class I	Class A	Class R6	Class F3
1 Year	$ 121	$ 96	$ 615	$ 81	$ 81
3 Years	$ 401	$ 323	$ 881	$ 276	$ 276
5 Years	$ 702	$ 569	$1,167	$ 488	$ 488
10 Years	$1,558	$1,273	$1,980	$1,098	$1,098

International and Global Funds

43

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 33% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in equity securities of companies located in a number of countries outside the United States. The Fund invests primarily in companies that are located in the countries included, at the time of purchase, in the MSCI EAFE Index, which includes developed countries outside of North America. Although the Fund may invest in companies across all market capitalizations, the Fund invests primarily in companies that, at the time of purchase, have a minimum market capitalization of $2 billion. The Fund may at times focus its investments in one or more sectors.

The Fund’s sub-adviser is Pyrford International Ltd. (Pyrford), an affiliate of the Adviser. Pyrford seeks to minimize losses by adopting a highly defensive investment stance at times of perceived high risk, characterized by high valuation levels or high levels of financial leverage. The Fund does not target a specific volatility level, but aims to deliver volatility significantly below that of the MSCI EAFE Index by being zero weight in any country, sector, or stock that Pyrford believes has very poor value as measured by established fundamental value metrics (such as dividend yields, return on equity, and P/E ratios).

In determining where a company is located, the sub-adviser primarily relies on the country where the company is incorporated, but also may consider the country where the company’s revenues are derived and the primary market listing for the class of shares to be purchased. Although the Fund invests primarily in companies that are included in the MSCI EAFE Index, the Fund may invest up to 20% of its net assets in companies located in countries not represented in this index, including emerging market countries.

The Fund may invest in forward foreign currency exchange contracts, a type of derivative instrument, for purposes of hedging its exposure to non-U.S. currencies. From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Currency Risks. To the extent that the Fund invests directly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Forward Foreign Currency Exchange Contracts Risks. Forward foreign currency exchange contracts are subject to currency risks. A forward foreign currency exchange contract

44	International and Global Funds

also may result in losses in the event of a default or bankruptcy of the counterparty. Forward foreign currency exchange contracts may limit potential gain from a positive change in the relationship between the U.S. dollar and foreign currencies.

Management Risks. Pyrford’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2012-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 14.80%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	9/30/2013	7.11%
Worst quarter	9/30/2015	(9.28)%

(1)

Because Class F3 shares have not been offered for a full calendar year, the information provided represents returns of Class I, Class Y, Class A, and Class R6 shares. Class F3 shares would have substantially similar annual returns because the shares are invested in the same portfolio of securities. The performance of Class F3 shares is expected to be the same as Class R6 shares because Class F3 and Class R6 shares have the same Total Annual Fund Operating Expenses.

International and Global Funds

45

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class Y, Class A, Class R6, and Class F3 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Morgan Stanley Capital International Europe, Australasia, Far East Index (EAFE) is a free-float adjusted market capitalization weighted index that is designed to measure the equity market performance of developed markets, excluding the United States and Canada.

The Lipper International Multi-Cap Core Funds Index (LIMCCFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Sub-Adviser. Pyrford International Ltd., an affiliate of the Adviser.

Portfolio Managers. Tony Cousins, Daniel McDonagh, and Paul Simons have co-managed the Fund since its inception in 2011. Mr. Cousins, Chief Executive Officer and Chief Investment Officer, joined Pyrford in 1989. Mr. McDonagh, Head of Portfolio Management, Europe & UK, joined Pyrford in 1997. Mr. Simons, Head of Portfolio Management, Asia-Pacific, joined Pyrford in 1996.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class Y and Class A shares and $1,000,000 for Class I shares. For Class Y and Class A, the minimum subsequent purchase amount is $50. Eligible retirement plans, fee-based wrap programs, and other registered investment companies generally may open an account and purchase Class R6 shares by contacting BMO Funds U.S. Services. Class F3 shares generally may be purchased only through fee-based wrap programs that have special agreements with the Fund's distributor. Please contact your adviser for specific program minimums.

Sale of Fund Shares. Please contact your plan administrator or recordkeeper in order to sell (redeem) Class R6 shares from your retirement plan and contact your advisor for instructions

specific to your program to sell (redeem) Class F3 shares. You may sell (redeem) your Class A, Class Y, or Class I shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

Tax Information

The Fund intends to make distributions that may be taxed as ordinary income or capital gains for federal income tax purposes.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

46	International and Global Funds

Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, and Acquired Fund Fees and Expenses) from exceeding 1.15% for Class I and 1.40% for Class A through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A
1 Year	$ 117	$ 635
3 Years	$ 414	$ 967
5 Years	$ 733	$1,322
10 Years	$1,637	$2,318

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 40% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its assets in equity securities of foreign companies located in emerging markets or whose primary business activities or principal trading markets are in emerging markets. The Fund may invest in equity securities of any market capitalization and may at times focus its investments in one or more sectors. The Fund’s sub-adviser, LGM Investments Limited (LGM Investments), an affiliate of the Adviser, considers emerging markets to be those markets in any country other than Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Greece, Ireland, Israel, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, the United Kingdom, and the United States. LGM Investments may make adjustments to the list of emerging markets countries from time to time based on economic criteria, market changes, or other factors.

LGM Investments uses a “bottom-up,” fundamental approach to identify quality, growth companies typically with dominant

International and Global Funds

47

industry positions, strong balance sheets, and cash flows to support a sustainable dividend payout.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Financial Services Risk. To the extent that the Fund invests a significant portion of its assets in the financial services sector, the Fund will have more exposure to the risks inherent to the financial services sector. Financial services companies may be adversely affected by changes in regulatory framework or interest rates that may negatively affect financial services businesses; exposure of a financial institution to a non-diversified or concentrated loan portfolio; exposure to financial leverage and/or investments or agreements that, under certain circumstances, may lead to losses; and the risk that a market shock or other unexpected market, economic, political,

regulatory, or other event might lead to a sudden decline in the values of most or all financial services companies.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Geographic Concentration Risks. To the extent the Fund invests a substantial amount of its assets in securities of issuers located in a single country or geographic region, the Fund’s performance may be more susceptible to any changes to the regulatory, political, social or economic conditions in such country or geographic region.

Management Risks. LGM Investments' judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total

48	International and Global Funds

returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com. LGM Investments assumed its role as sub-adviser of the Fund effective December 28, 2012. From December 29, 2011 to December 28, 2012, Lloyd George Management (Hong Kong) Limited (LGM(HK)), another affiliate of the Adviser, served as the Fund’s sub-adviser. Prior to December 29, 2011, the Fund was known as the Marshall Emerging Markets Equity Fund and was managed by another sub-adviser. The performance results shown in the bar chart and table are from periods during which the Fund was managed by LGM Investments, LGM(HK), or another sub-adviser.

Class I — Annual Total Returns (calendar years 2009-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 28.29%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	6/30/2009	32.63%
Worst quarter	9/30/2011	(23.74)%

	1 Year	Since Inception
Class A (Inception 5/27/2014)
Return Before Taxes	5.72%	-2.88%
EMI (reflects no deduction for fees, expenses or taxes)	11.60%	-3.98%
LEMFI (reflects deduction of fees and no deduction for sales charges or taxes)	12.10%	-4.12%

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Morgan Stanley Capital International Emerging Markets Index (EMI) is a market capitalization-weighted equity index of companies representative of the market structure of emerging countries in Europe, Latin America, Africa, the Middle East, and Asia.

The Lipper Emerging Markets Funds Index (LEMFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Sub-Adviser. LGM Investments Limited, an affiliate of the Adviser.

Portfolio Managers. Damian Bird, Irina Hunter, and Rishikesh Patel co-manage the Fund. Mr. Bird, a Portfolio Manager at LGM Investments, joined Lloyd George Management (together with LGM Investments and its subsidiaries, “LGM”) in 2015 and has co-managed the Fund since July 2016. Ms. Hunter, a Senior Portfolio Manager at LGM Investments, joined LGM in 2007 and has co-managed the Fund since December 2011. Mr. Patel, a Portfolio Manager at LGM Investments, joined LGM in 2006 and has co-managed the Fund since March 2016.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50.

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49

emerging market countries from time to time based on economic criteria, market changes, or other factors.

Although the Fund intends to invest primarily in investment grade securities (i.e., rated BBB by Standard & Poor’s or Baa by Moody’s Investors Service, or higher, or unrated and considered by the sub-adviser to be comparable in quality), the Fund may invest in debt securities that are below investment grade, also known as high yield securities or “junk bonds,” generally in accordance with the Fund’s current benchmark, the J.P. Morgan Emerging Markets Bond Index Global Diversified. High yield securities may represent more than 20% of the Index. TCH uses macroeconomic, credit, and market analysis to select portfolio securities. Although the Fund expects to maintain an intermediate- to long-term average effective maturity, no maturity restrictions on individual holdings or on the overall portfolio exist. Effective maturity takes into account the possibility that a bond may have prepayments or may be called by the issuer before its stated maturity date.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Call Risks. If the securities in which the Fund invests are redeemed by the issuer before maturity (or “called”), the Fund may have to reinvest the proceeds in securities that pay a lower interest rate, which may decrease the Fund’s yield. This will most likely happen when interest rates are declining.

Corporate Debt Securities Risks. Corporate debt securities are fixed income securities issued by businesses. The market value of corporate debt may be affected by changes in the market rate of interest, the credit rating of the corporation, the corporation’s performance, and perceptions of the corporation in the market place. Corporate issuers may not be able to meet their obligations on interest or principal payments at the time called for by an instrument.

Credit Risks. Credit risk is the possibility that an issuer or counterparty will default on a security or repurchase agreement by failing to pay interest or principal when due. If an issuer defaults, the Fund may lose money. Lower credit ratings

correspond to higher credit risk. Bonds rated lower than BBB or Baa have speculative characteristics.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

High Yield Securities Risks. High yield securities, also referred to as “junk bonds” or non-investment grade securities, are debt securities rated lower than BBB by Standard & Poor’s or Baa by Moody’s Investors Service. These securities tend to be more sensitive to economic conditions than are higher-rated securities, generally involve more credit risk than securities in the higher-rated categories, and are predominantly considered to be speculative. The issuers of high yield securities are typically more leveraged and the risk of loss due to default by an issuer of high yield securities is significantly greater than issuers of higher-rated securities because such securities are generally unsecured and are often subordinated to other creditors. The Fund may have difficulty disposing of certain high yield securities because a thin trading market for such securities may exist.

Interest Rate Risks. Prices of fixed income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed income securities fall. Interest rate changes have a greater effect on the price of fixed income securities with longer maturities. Interest rate changes also are influenced by a number of factors including government policy, inflation expectations, and supply and demand.

Liquidity Risks. Liquidity risk refers to the possibility that the trading market for a particular type of security becomes less liquid or the Fund may not be able to sell or buy a security or close out an investment contract at a favorable price or time. The market for lower-quality debt instruments, including junk bonds, is generally less liquid than the market for higher-quality debt instruments. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. Infrequent trading

52	International and Global Funds

of securities also may lead to an increase in their price volatility. Illiquidity may result from political, economic, or issuer specific events or overall market disruptions.

Management Risks. TCH's judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Sovereign Debt Securities Risks. Sovereign debt securities are subject to risks in addition to those relating to debt securities and foreign securities, including the risk that a governmental entity may be unwilling or unable to meet its obligations due to insufficient cash flow or foreign reserves, the size of the debt service burden, or government monetary policy. In the event of a default on sovereign debt, the Fund also may have limited legal recourse against the defaulting government entity.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2014-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 7.69%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	3/31/2016	6.12%
Worst quarter	9/30/2015	(6.24)%

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The JP Morgan Emerging Markets Bond Global Diversified Index tracks total returns for traded external debt instruments in the emerging markets and limits the weights of those index countries with larger debt stocks by only including a specified portion of these countries’ eligible current face amounts of debt outstanding.

The Lipper Emerging Markets Hard Currency Debt Funds Index (LEMHCDFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Sub-Adviser. Taplin, Canida & Habacht, LLC, an affiliate of the Adviser.

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53

Portfolio Managers. Scott M. Kimball, Daniela Mardarovici, Frank Reda, and Janelle Woodward are co-portfolio managers of the Fund. Mr. Kimball, Vice President and a Portfolio Manager of TCH, joined TCH in 2007 and has co-managed the Fund since its inception in 2013. Ms. Mardarovici, Vice President and a Portfolio Manager of TCH, joined TCH in 2012 and has co-managed the Fund since its inception in 2013. Mr. Reda, a Portfolio Manager of TCH, joined TCH in 2001 and has co-managed the Fund since December 2015. Ms. Woodward, President and a Portfolio Manager of TCH, joined TCH in 2007 and has co-managed the Fund since December 2015.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50.

Sale of Fund Shares. You may sell (redeem) your shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

Tax Information

The Fund intends to make distributions that are expected to be taxed primarily as ordinary income for federal income tax purposes.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund

over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

54	International and Global Funds

factors is reviewed when determining the allocations to the Sub-Advisers, including each Sub-Adviser’s investment style, historical performance, and portfolio holdings.

The Adviser is responsible for setting and monitoring the Fund’s investment guidelines, selecting the Fund’s Sub-Advisers, managing the Fund’s cash, allocating Fund assets among Sub-Advisers, and monitoring the performance of each Sub-Adviser. The Adviser also may manage a portion of the Fund’s assets to (i) properly position the overall portfolio from a risk management perspective; (ii) manage one or more of the strategies discussed below on a temporary or long-term basis; or (iii) make additional investments at its own discretion. The Adviser currently manages a portion of the Fund’s assets by implementing a Long/Short Equity Strategy, as described more fully below. CTC myCFO, LLC (CTC), one of the Fund’s Sub-Advisers and an affiliate of the Adviser, assists the Adviser in identifying and selecting the Sub-Advisers and determining the most appropriate allocation of the Fund’s assets among the Sub-Advisers. The identity and number of Sub-Advisers and the allocation of Fund assets among them will change over time.

Each Sub-Adviser other than CTC is responsible for the day-to-day investment decisions for the portion of Fund assets allocated to it, although the Adviser may, in its sole discretion, develop performance benchmarks and investment guidelines with the Sub-Advisers. In recommending new Sub-Advisers to the Fund’s Board of Directors, the Adviser conducts a detailed quantitative, qualitative, and risk analysis process and considers numerous factors, including, but not limited to, the Sub-Adviser’s investment style, reputation, depth and experience of its investment team, financial stability, demonstrated ability to implement a particular investment strategy, consistency of past returns, and policies and procedures to monitor account for risk.

The investment strategies that the Sub-Advisers may utilize generally include the following types of investments: (i) equity securities of companies of any market capitalization throughout the world (including the United States), which may include common and preferred stocks, convertible securities, rights and warrants to purchase common stock, depositary receipts, and securities issued by other investment companies, including exchange traded funds (ETFs); (ii) debt securities, which may include debt securities of governments throughout the world (including the United States) as well as their agencies and/or instrumentalities, debt securities of corporations throughout the world (including the United States), below investment grade debt securities, including defaulted securities and distressed debt (commonly known as “junk bonds”), bank loans, and convertible bonds; and (iii) foreign currencies. The Sub-Advisers invest without limitation in securities of any duration.

In addition, certain Sub-Advisers may engage in long and short sales transactions to employ their strategies. When a Sub-Adviser sells securities short for the Fund, it sells a security that the Fund does not own (but has borrowed) at its current market price in anticipation that the price of the security will decline. To complete the short sale transaction, the Sub-Adviser buys the same security for the Fund in the market at a later date and returns it to the lender. Long positions benefit from an increase in the price of the underlying instrument or asset class, while short positions benefit from a decrease in that price.

The Sub-Advisers may invest in a variety of derivative instruments for hedging or investment purposes. Such derivative instruments may include: (i) futures contracts based on securities, indices, currencies, and/or U.S. government bonds; (ii) forward foreign currency exchange contracts; (iii) swaps, such as credit default swaps, total return swaps, and/or interest rate swaps; and (iv) call and put options on securities and indices, including writing (selling) calls against positions in the portfolio (covered calls) or writing (selling) puts on securities and indices. The Sub-Advisers may use any of these derivatives in an effort to enhance returns or manage and/or adjust the risk profile of the Fund or the risk of individual positions. A Sub-Adviser may choose not to hedge its positions. As a result of the Fund’s derivatives usage, the Fund may have economic leverage, which means that the sum of the Fund’s investment exposures through the use of its derivatives may exceed the amount of assets invested in the Fund, although these exposures may vary over time.

In addition to the specific Sub-Adviser Strategies described below, the Adviser may selectively implement an overlay strategy from time to time to manage the risk of the combined portfolio. The Adviser monitors the portion of assets allocated to each Sub-Adviser. The Adviser also reviews the risk profile of the overall portfolio and the Fund’s adherence to investment guidelines. The Adviser may implement the overlay strategy when the Adviser considers the overall portfolio to have more exposure to a certain type of risk than is appropriate, when the Adviser considers the Fund’s volatility to be higher or lower than desired, or to ensure adherence to investment guidelines. On occasion, the Adviser also may utilize the overlay strategy to seek additional returns. In implementing the overlay strategy, the Adviser expects to utilize derivative instruments, such as S&P 500 futures contracts, and may utilize other types of investments at times. The Adviser expects the overlay strategy will allow it to manage the Fund’s risks with more precision with the intent to deliver more consistent returns with lower volatility.

Sub-Adviser Strategies. The Adviser expects that the Sub-Advisers (and, at times, the Adviser) generally will implement one or more of the investment strategies summarized below.

56	Alternative Funds

These strategies are similar to investment strategies traditionally employed by hedge funds, which include non-traditional or “alternative” strategies. These strategies may be used by a Sub-Adviser or Adviser to seek high total return, to provide hedging benefits, to manage volatility, and/or to provide market-neutral returns for the Fund. From time to time, the Fund may have little or no assets allocated to any one particular strategy in light of economic or other conditions (including the availability of Sub-Advisers), as determined by the Adviser in its sole discretion.

The descriptions of the following investment strategies are subjective, are not complete descriptions of any strategy, and may differ from classifications made by other investment firms that implement similar investment strategies.

Long/Short Equity Strategies: The Adviser or a Sub-Adviser (for purposes of this section only, each is referred to as an “Adviser”) employing a long/short equity strategy generally seeks to produce returns from investments in the equity markets by combining long and short positions in particular securities or markets. For example, in employing this strategy, an Adviser may use fundamental research to identify securities to buy long (with the expectation that they will increase in value) and sell short (with the expectation that they will decrease in value). Other methodologies, such as relative value or event driven, also may be utilized to determine which securities to buy long and which to sell short. Under this strategy, the Fund may purchase securities or sell securities short or use options and futures or other derivative instruments on securities, ETFs, or indices to gain long or short exposure to securities or markets. An Adviser employing this strategy for the Fund may invest in one or more countries, including developed and emerging market countries, and may specialize in specific sectors, industries, or market capitalizations.

Hedged Credit Strategies: A hedged credit (or long/short fixed income) strategy generally involves taking both long and short positions in fixed income securities across multiple sectors and credit quality ranges in one or more countries, including developed and emerging market countries. An Adviser that employs this strategy generally uses a fundamental driven approach to investing across the capital structure of a company and attempts to profit from investing in all aspects of a company’s capital structure through both long and short positions. Other methodologies, such as event driven also may be utilized to determine the long and short positions. In employing a hedged credit strategy, an Adviser may invest in a variety of fixed or variable rate debt instruments and other securities of all credit qualities including high yield bonds,

distressed securities, and companies near, or in, bankruptcy. An Adviser also may invest in equity securities and other types of securities when employing this type of strategy. These securities may be currently out-of-favor, have low credit ratings, or be affected by other adverse factors which may be due to an anticipation of an upgrade in the debt instrument’s ratings, expectation that a reorganization will provide greater value, or other business factors that an Adviser believes the marketplace has not yet reflected. Under this strategy, the Fund may purchase securities or sell securities short and use collateralized debt obligations and derivative instruments, such as credit default swaps and equity options, to gain long or short exposure to securities or markets.

Event Driven Strategies: An event driven strategy seeks to profit from pricing inefficiencies that may result from specific, catalyst-driven events, such as mergers, spin-offs, corporate restructurings, and management changes. Investments pursuant to this strategy focus on company-specific activities and seek to profit from specific events regardless of market direction. An Adviser employing this strategy for the Fund may invest in either equity or debt securities, may invest in one or more countries, including developed and emerging market countries, and may specialize in specific sectors, industries, or market capitalizations.

Relative Value Strategies: A relative value strategy employs investment techniques that are intended to profit from pricing inefficiencies, which involves taking a position in one financial instrument while offsetting the position with another financial instrument in an attempt to benefit from changes in price. For example, an Adviser utilizing this strategy may use fundamental monitoring of securities with macro data analysis to determine the most attractive company-specific securities for both long and short positions. In addition, an Adviser may seek to identify pricing inefficiencies in volatile products, such as options, and buy or sell a combination of such products to profit from their mispricing. Under this strategy, an Adviser may purchase securities or sell securities short, including ETFs, and use derivative instruments, including over-the-counter and exchange traded instruments, such as futures, swaps, currency forwards, and options on securities, ETFs, or indices to realize pricing inefficiencies or to hedge the portfolio. An Adviser employing this strategy for the Fund may invest in one or more countries, including developed and emerging market countries, and may specialize in specific sectors, industries, or market capitalizations.

Alternative Funds

57

Macro Strategies: A macro strategy seeks to profit from anticipated changes in macroeconomic trends in the fixed income, equity, and foreign currency markets. For example, an Adviser may establish both long and short positions in interest rate, foreign exchange, equity, and credit markets (often through derivatives such as futures) based on its analysis of global economic conditions. An Adviser may use quantitative models to identify investment opportunities across asset classes and to forecast trends in the markets and/or may employ a managed futures strategy to profit from shifts in different markets. Certain Advisers may implement this strategy primarily through the use of managed futures. Under this strategy, an Adviser may purchase securities or sell securities short or use derivative instruments, such as futures and currency forwards, to achieve the same effect. A macro strategy may be either tactical or strategic and an Adviser employing this strategy for the Fund may invest in one or more countries, including developed and emerging market countries, and may specialize in specific sectors, industries, or market capitalizations.

In implementing these investment strategies, an Adviser may engage in frequent trading of securities. BMO Asset Management Corp. may, in its discretion, add to, delete from, or modify the categories of investment strategies employed by the Fund and one or more of the strategies described above may not be represented in the Fund’s holdings at any given time. In addition, in certain circumstances, an Adviser may make additional investments in pursuing its investment strategy.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Aggressive Investment Techniques and Strategies Risks. The Fund may invest in and use investment techniques, strategies, and financial instruments that may be considered aggressive. These techniques may expose the Fund to economic leverage or potentially dramatic changes (losses) in the value of its portfolio holdings.

Asset-Backed/Mortgage-Backed Securities Risks. Asset-backed and mortgage-backed securities are subject to risks of prepayment. The Fund’s yield will be reduced if cash from prepaid securities is reinvested in securities with lower interest rates. The risk of prepayment also may decrease the value of mortgage-backed securities. Asset-backed securities may have a higher level of default and recovery risk than mortgage-backed securities. Both of these types of securities may decline in value because of mortgage foreclosures or defaults on the underlying obligations. Credit risk is greater for mortgage-backed and asset-backed securities that are subordinate to another security.

Bank Instruments Risks. Bank instruments are unsecured interest-bearing deposits with banks, including bank accounts, time deposits, certificates of deposit, and banker’s acceptances. Changes in economic, regulatory, or political conditions or other events that affect the banking industry, may have an adverse effect on bank instruments or banking institutions that serve as counterparties in transactions with the Fund.

Bank Loan Risks. No active trading market may exist for some loans in which the Fund may invest and a secondary market for those loans may be subject to irregular trading activity, wide bid/ask spreads, and extended trade settlement periods, which may affect the ability of the Fund to accurately value the loan. In addition, certain loans may not be considered “securities,” and, therefore, the Fund may not be entitled to rely on the antifraud protections of the federal securities laws.

Call Risks. If the securities in which the Fund invests are redeemed by the issuer before maturity (or “called”), the Fund may have to reinvest the proceeds in securities that pay a lower interest rate, which may decrease the Fund’s yield. This will most likely happen when interest rates are declining.

Collateralized Debt Obligations (CDO) Risks. An investment in a CDO is subject to the risks of debt securities and asset-backed securities generally and also are subject to additional risks, such as liquidity risk; the risk that distributions from collateral securities will not be adequate to make interest or other payments; and the risk that the quality of the collateral may decline in value, default, or be downgraded.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers in comparison with the rights of preferred stockholders, bondholders, and other creditors.

58	Alternative Funds

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Convertible Security Risks. Convertible securities are fixed income securities that the Fund has the option to exchange for equity securities at a specified conversion price. Consequently, the value of the convertible security may be exposed to the stock market risk of the underlying stock, or may be exposed to the interest rate or credit risk of the issuer. Because both interest rate and market movements can influence its value, a convertible security is usually not as sensitive to interest rate changes as a similar fixed-income security, nor is it as sensitive to changes in share price as its underlying stock. Convertible securities also are subject to credit risks that affect debt securities in general.

Corporate Debt Securities Risks. Corporate debt securities are fixed income securities issued by businesses. The market value of corporate debt may be affected by changes in the market rate of interest, the credit rating of the corporation, the corporation’s performance, and perceptions of the corporation in the market place. Corporate issuers may not be able to meet their obligations on interest or principal payments at the time called for by an instrument.

Corporate Restructuring Risks. Securities of companies that are involved in company turnarounds or corporate restructurings may present special risk because of the high degree of uncertainty that can be associated with such events. It is possible that the market price of securities of companies involved in company turnarounds or corporate restructurings may be subject to significant and unpredictable fluctuations.

Credit Risks. Credit risk is the possibility that an issuer or counterparty will default on a security or repurchase agreement by failing to pay interest or principal when due. If an issuer defaults, the Fund may lose money. Lower credit ratings correspond to higher credit risk. Bonds rated lower than BBB or Baa have speculative characteristics.

Currency Risks. To the extent that the Fund invests directly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Derivatives Risks. The performance of derivative instruments depends largely on the performance of the underlying

reference instrument and an Adviser’s ability to predict correctly the direction of securities prices, interest rates, currency exchange rates, and/or other economic factors. Derivatives involve additional costs and can create economic leverage in the Fund’s portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as gains) in an amount that exceeds the Fund’s initial investment. Other risks include liquidity due to possible lack of a secondary market, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When used for hedging, the change in value of the derivative also may not correlate specifically with the currency, security, or other risk being hedged. With over-the-counter derivatives, a risk exists that the other party to the transaction will fail to perform. Specific types of derivative securities also are subject to a number of additional risks, such as:

•	Counterparty Risk. A loss may be sustained as a result of the failure of another party to the contract to make required payments or otherwise fulfill its obligations under the contract’s terms.
•	Credit Default Swap Risks. Credit default swaps are subject to general market risks, liquidity risks, and credit risks. If the Fund is a buyer in a credit default swap agreement and no credit event occurs, then it will lose its investment. If the Fund is a seller in a credit default swap and an event of default occurs, a loss of value to the Fund may result.
•	Forward Contracts Risks. Forward contracts are not currently exchange-traded and, therefore, no clearinghouse or exchange stands ready to meet the obligations of the contracts. Thus, the Fund faces the risk that its counterparties may not perform their obligations. Non-deliverable forwards are considered swaps and may in the future be required to be centrally cleared and traded on public facilities.
•	Forward Foreign Currency Exchange Contracts Risks. Forward foreign currency exchange contracts are subject to currency risks, liquidity risks, and credit risks. A forward foreign currency exchange contract may result in losses in the event of a default or bankruptcy of the counterparty. Forward foreign currency exchange contracts may limit potential gain from a positive change in the relationship between the U.S. dollar and foreign currencies.
•	Leverage Risks. Derivatives and other investments may create economic leverage and can result in losses to the Fund that exceed the original amount invested.

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•	Options and Futures Risks. Options and futures contracts may be more volatile than investments directly in the underlying securities, involve additional costs, and may involve a small initial investment relative to the risk assumed.
•	Swap Agreement Risks. A swap agreement may not be assigned without the consent of the counterparty and may result in losses in the event of a default or bankruptcy of the counterparty.

Distressed Securities Risks. The Fund’s investment in distressed securities may involve a substantial degree of risk. These instruments, which involve loans, loan participations, bonds, notes, and non-performing and sub-performing mortgage loans, typically are unrated, lower-rated, in default, or close to default. Many of these instruments are not publicly traded and may become illiquid. The prices of such instruments may be extremely volatile. Securities of distressed companies are generally more likely to become worthless than the securities of more financially stable companies. Valuing such instruments may be difficult and the Fund may lose all of its investment or it may be required to accept cash or securities with a value less than the Fund’s original investment. Issuers of distressed securities are typically in a weak financial condition and may default, in which case the Fund may lose its entire investment.

Dollar Rolls Risks. Dollar rolls are transactions in which a Fund sells mortgage-backed securities with a commitment to buy similar, but not identical, mortgage-backed securities on a future date at a predetermined price. Normally, one or both securities involved are “to be announced” mortgage-backed securities or “TBAs.” Dollar rolls are subject to interest rate risks and credit risks. These transactions may create leverage risks. Dollar roll transactions will cause the Fund to have an increased portfolio turnover rate.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Exchange-Traded Funds Risks. By investing in an ETF, a risk exists that the value of the underlying securities of the ETF may decrease. In addition, the market price of ETF shares may trade at a discount to their net asset value or an active trading market for ETF shares may not develop or be maintained. ETFs in which the Fund invests typically will not be able to replicate exactly the performance of the indices they track. The Fund also will bear its proportionate share of the ETF’s fees (including management and advisory fees) and expenses.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Government Obligations Risks. No assurance can be given that the U.S. government will provide financial support to U.S. government-sponsored agencies or instrumentalities where it is not obligated to do so by law (such as Fannie Mae or Freddie Mac). As a result, a risk exists that these entities will default on a financial obligation.

High Yield Securities Risks. High yield securities, also referred to as “junk bonds” or non-investment grade securities, are debt securities rated lower than BBB by Standard & Poor’s or Baa by Moody’s Investors Service. These securities tend to be more sensitive to economic conditions than are higher-rated securities, generally involve more credit risk than securities in the higher-rated categories, and are predominantly considered to be speculative. The issuers of high yield securities are typically more leveraged and the risk of loss due to default by an issuer of high yield securities is significantly greater than issuers of higher-rated securities because such securities are generally unsecured and are often subordinated to other creditors. The Fund may have difficulty disposing of certain high yield securities because a thin trading market for such securities may exist.

Income Risks. The Fund’s income could decline due to falling market interest rates. In a falling interest rate environment, the Fund may be required to invest its assets in lower-yielding securities.

Interest Rate Risks. Prices of fixed income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed income securities fall. Interest rate changes have a greater effect on the price of fixed income securities with longer maturities. Interest rate changes also are influenced by a number of factors including government policy, inflation expectations, and supply and demand.

Liquidity Risks. Liquidity risk refers to the possibility that the trading market for a particular type of security becomes less liquid or the Fund may not be able to sell or buy a security or close out an investment contract at a favorable price or time. The market for lower-quality debt instruments, including junk bonds and leveraged loans, is generally less liquid than the market for higher-quality debt instruments. Consequently, the Fund may have to accept a lower price to sell a security, sell

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other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. Infrequent trading of securities also may lead to an increase in their price volatility. Illiquidity may result from political, economic, or issuer specific events or overall market disruptions.

Management Risks. An Adviser’s judgment about the attractiveness, value, level of expected volatility, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results. In addition, because portions of the Fund’s assets are managed by different Advisers using different styles, the Fund could experience overlapping security transactions or take opposite positions in securities of the same issuer or engage in derivatives transactions that may offset each other. Certain Advisers may be purchasing securities at the same time other Advisers may be selling those same securities, which may lead to higher transaction expenses compared to a fund using a single investment management style. To a significant extent, the Fund’s performance will depend on the success of BMO Asset Management Corp. in allocating the Fund’s assets among the various investment strategies and Advisers. Because BMO Asset Management Corp. will not be subject to fixed limitations upon the amount of Fund assets that may be invested with a single Adviser or in a single investment strategy, the Fund may be more heavily exposed to the investment judgments of one or more Advisers or the possible increased risk of investing in a limited number of investment strategies. In addition, certain of the Advisers may have limited experience managing strategies within a registered investment company. Registered investment companies, unlike the private hedge funds the Advisers may typically manage, are subject to daily cash flows from investors and to certain legal and tax-related restrictions on investments.

Market Direction Risks. Because the Fund will typically hold both long and short positions, the Fund’s results will suffer both when a general market advance occurs and the Fund holds significant “short” positions or when a general market decline occurs and the Fund holds significant “long” positions.

Other Investment Companies Risks. The Fund may invest in securities issued by other investment companies, including exchange-traded funds. By investing in another investment company, a risk exists that the value of the underlying securities of the investment company may decrease. The Fund also will bear its proportionate share of the other investment company’s fees and expenses in addition to the fees and expenses of the Fund.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to

shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Quantitative Model and Information Risks. When the quantitative models (Models) and information and data (Data) used in managing the Fund prove to be incorrect or incomplete, any investment decisions made in reliance on the Models and Data may not produce the desired results and the Fund may realize losses. The success of the Models depends on the accuracy and completeness of the analyses and assessments that were used in developing such Models. The success of Models that are predictive in nature is dependent largely upon the accuracy and reliability of the supplied historical data. All Models are susceptible to input errors that may cause the resulting information to be incorrect.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Short Sales Risks. The risk on a short sale is the risk of loss if the value of a security sold short increases prior to the delivery date, since the Fund must pay more for the security than it received from the purchaser in the short sale. In addition, it is possible that the Fund’s securities held long will decline in value at the same time that the value of the securities sold short increase in value, increasing the potential for loss. Therefore, the risk of loss may be theoretically unlimited.

Sovereign Debt Securities Risks. Sovereign debt securities are subject to risks in addition to those relating to debt securities and foreign securities, including the risk that a governmental entity may be unwilling or unable to meet its obligations due to insufficient cash flow or foreign reserves, the size of the debt service burden, or government monetary policy. In the event of a default on sovereign debt, the Fund also may have limited legal recourse against the defaulting government entity.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may

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increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Style Risks. Investments in value stocks are subject to the risk that their intrinsic values may never be realized by the market, that a stock judged to be undervalued may actually be appropriately priced, or that their prices may decline, even though in theory they are already undervalued. Value stocks can react differently to issuer, political, market, and economic developments than the market as a whole and other types of stocks (e.g., growth stocks).

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2015-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 4.42%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	3/31/2015	3.57%
Worst quarter	9/30/2015	(3.32)%

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The Bank of America Merrill Lynch 3-Month U.S. Treasury Bill Index (ML 3-Month) consists of U.S. Treasury Bills maturing in 90 days.

The HFRX Global Hedge Fund Index (HFRXGHFI) is designed to be representative of the overall composition of the hedge fund universe.

The Lipper Alternative Multi-Strategy Funds Index (LAMSFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Sub-Advisers	Strategy
Cramer Rosenthal McGlynn, LLC (Cramer Rosenthal)	Long/Short Equity/Event Driven Strategy – All Capitalization Ranges
Graham Capital Management, L.P. (Graham)	Macro – Tactical Trend Managed Futures Strategy
Iridian Asset Management LLC (Iridian)	Long/Short Equity Strategy – Midsize Capitalization Ranges

Portfolio Managers. Michael Dowdall and Kristina Kalebich are co-portfolio managers of the Fund. Mr. Dowdall, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2016 and has co-managed the Fund since March 2017. Ms. Kalebich, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2014 and has co-managed the Fund since its inception in 2014.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50.

Sale of Fund Shares. You may sell (redeem) your shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

Tax Information

The Fund intends to make distributions that may be taxed as ordinary income or capital gains for federal income tax purposes.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its

related companies may pay the intermediary for the sale of shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

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Investment Objective:

To provide capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Class A shares of certain BMO Funds. More information about these and other discounts is available from your financial professional and under “How to Buy Shares – Purchase of Class A Shares – Class A Shares – Sales Charge” on page 121 of this Prospectus and under “How to Buy Shares – Class A Shares – Waivers and Reductions of Sales Charges” beginning on page 122 of this Prospectus and “How to Buy Shares” beginning on page B-38 of the Fund’s Statement of Additional Information.

(1)	The Maximum Deferred Sales Charge on Class A shares is applied only to purchases of $1,000,000 or more that are redeemed within 18 months of purchase.

(2)	Other Expenses for Class R6 shares are based on estimated amounts for the current fiscal year.

(3)	Acquired Fund Fees and Expenses represent the pro rata expense indirectly incurred by the Fund as a result of its investment in other investment companies. Total Annual Fund Operating Expenses shown will not correlate to the Fund’s ratio of expenses to average net assets

appearing in the Financial Highlights tables, which do not include Acquired Fund Fees and Expenses.

(4)

BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs, and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund’s business, Acquired Fund Fees and Expenses, and Dividend and Interest Expense) from exceeding 1.35% for Class I, 1.60% for Class A, and 1.20% for Class R6 through December 31, 2018. This expense limitation agreement may not be terminated prior to December 31, 2018 without the consent of the Fund’s Board of Directors, unless terminated due to the termination of the investment advisory agreement.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, whether you redeem all of your shares at the end of those periods or not. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-, five-, and ten-year examples reflect the Adviser’s agreement to waive fees and reimburse expenses through December 31, 2018. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:

	Class I	Class A	Class R6
1 Year	$ 224	$ 737	$ 209
3 Years	$1,221	$1,727	$1,178
5 Years	$2,220	$2,716	$2,152
10 Years	$4,734	$5,181	$4,615

Portfolio Turnover

The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 42% of the average value of its portfolio.

Principal Investment Strategies

The Fund invests at least 80% of its net assets in equity securities or equity-related securities, including both long and short positions and derivative instruments that provide exposure to equity securities. The Fund normally invests at least

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40% of its net assets in equity securities or equity-related securities of companies located outside the United States, including emerging market countries, and will be diversified among at least three countries. Equity securities in which the Fund may invest include common stock, preferred stock, depositary receipts, rights, warrants, and exchange-traded funds (ETFs). The Fund also may invest in convertible securities (fixed income securities convertible into shares of common or preferred stock), which the Fund treats as both fixed income and equity securities for purposes of its investment policies and limitations. In determining where a company is located, the Adviser primarily relies on the country where the company is incorporated, but also may consider the country where the company’s revenues are derived and the primary market listing for the class of shares to be purchased. The Fund may invest in companies across all market capitalizations and may at times focus its investments in one or more sectors.

The Adviser seeks to achieve the Fund’s investment objective by taking both long and short positions in global equity securities. The Adviser combines a quantitative approach with a fundamental bottom-up (company-specific) and top-down (market-level) analysis that seeks to provide the Fund with lower downside risk and meaningful upside participation relative to the MSCI All Country World Index, the Fund’s primary benchmark index.

The Fund’s Adviser focuses on companies for “long” positions that it believes are fundamentally strong, have attractive valuations, possess growing investor interest, and may outperform the overall equity market. Using a unique approach which combines the use of proprietary analytical tools and the qualitative judgments of the investment team, the Adviser selects equity securities that it believes will provide higher returns than its benchmark index. As part of this process, the Adviser considers numerous factors including (but not limited to) valuation, earnings quality, earnings growth potential, and earnings and price momentum. The Adviser invests in those securities it believes will provide a better return relative to their risk than other securities. The Adviser may sell a security for numerous reasons, including if a company’s fundamentals deteriorate or the Adviser believes a company’s fundamentals will deteriorate, if another security appears to provide the potential for a better return relative to its risk, if the Adviser believes the security is no longer attractively valued, or if the Adviser believes the security will no longer help the Fund achieve its investment objective. The Adviser also may sell a security to manage the size of a holding or sector weighting or to fund redemptions.

The Fund’s Adviser focuses on companies for “short” positions that it believes are fundamentally challenged, are overvalued, are experiencing deteriorating investor interest, and may

underperform the overall equity market. The Adviser uses essentially the same approach described above to identify potential short opportunities, but augments its process to account for securities that are difficult to short due to size and availability of securities and to eliminate short positions with risk profiles the Adviser considers unattractive.

The Fund may invest in various derivatives instruments for purposes of pursuing its investment objective, for risk management, portfolio management, earning income, managing target duration, gaining exposure to a particular asset class, or hedging its exposure to particular investments or non-U.S. currencies. Such derivative instruments may include: (i) currency futures, forwards, options, and swaps; (ii) index futures, forwards, options, and swaps; (iii) equity futures, forwards, options, and swaps; and (iv) forward foreign currency exchange contracts.

The Adviser’s long/short exposure will vary over time based on the Adviser’s assessments of market conditions and other factors. In implementing the investment strategies, the Adviser may engage in frequent trading.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Asset Segregation Risks. As a series of an investment company registered with the SEC, the Fund must segregate liquid assets, or engage in other measures to “cover” open positions with respect to certain kinds of derivatives and short sales. The Fund may incur losses on derivatives and other leveraged investments (including the entire amount of the Fund’s investment in such investments) even if they are covered.

Common Stock Risks. Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in, and perceptions of, their issuers change. Holders of common stocks are generally subject to greater risk than holders of preferred stocks and debt obligations of the same issuer because common stockholders generally have inferior rights to receive payments from issuers

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in comparison with the rights of preferred stockholders, bondholders, and other creditors.

Company Size Risks. Generally, the smaller the market capitalization of a company, the fewer the number of shares traded daily, the less liquid its stock and the more volatile its price. Companies with smaller market capitalizations also tend to have unproven track records, a limited product or service base, and limited access to capital. These factors also increase risks and make these companies more likely to fail than companies with larger market capitalizations.

Convertible Security Risks. Convertible securities are fixed income securities that the Fund has the option to exchange for equity securities at a specified conversion price. Consequently, the value of the convertible security may be exposed to the stock market risk of the underlying stock, or may be exposed to the interest rate or credit risk of the issuer. Because both interest rate and market movements can influence its value, a convertible security is usually not as sensitive to interest rate changes as a similar fixed-income security, nor is it as sensitive to changes in share price as its underlying stock. Convertible securities also are subject to credit risks that affect debt securities in general.

Currency Risks. To the extent that the Fund invests directly in foreign (non-U.S.) currencies or in securities denominated in, or that trade in, foreign (non-U.S.) currencies, it is subject to the risk that those currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency being hedged.

Derivatives Risks. The performance of derivative instruments depends largely on the performance of the underlying reference instrument and an Adviser’s ability to predict correctly the direction of securities prices, interest rates, currency exchange rates, and/or other economic factors. Derivatives involve additional costs and can create economic leverage in the Fund’s portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as gains) in an amount that exceeds the Fund’s initial investment. Other risks include liquidity due to possible lack of a secondary market, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When used for hedging, the change in value of the derivative also may not correlate specifically with the currency, security, or other risk being hedged. With over-the-counter derivatives, a risk exists that the other party to the transaction will fail to perform. Specific types of derivative securities also are subject to a number of additional risks, such as:

•	Counterparty Risk. A loss may be sustained as a result of the failure of another party to the contract to make required payments or otherwise fulfill its obligations under the contract’s terms.
•	Forward Foreign Currency Exchange Contracts Risks. Forward foreign currency exchange contracts are subject to currency risks. A forward foreign currency exchange contract also may result in losses in the event of a default or bankruptcy of the counterparty. Forward foreign currency exchange contracts may limit potential gain from a positive change in the relationship between the U.S. dollar and foreign currencies.
•	Forward Contracts Risks. Forward contracts are not currently exchange-traded and, therefore, no clearinghouse or exchange stands ready to meet the obligations of the contracts. Thus, the Fund faces the risk that its counterparties may not perform their obligations. Non-deliverable forwards are considered swaps and may in the future be required to be centrally cleared and traded on public facilities.
•	Options and Futures Risks. Options and futures contracts may be more volatile than investments directly in the underlying securities, involve additional costs, and may involve a small initial investment relative to the risk assumed.
•	Swap Agreements Risks. A swap agreement may not be assigned without the consent of the counterparty and may result in losses in the event of a default or bankruptcy of the counterparty.

Emerging Markets Risks. Investments in emerging markets can involve risks in addition to, and greater than, those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.

Exchange-Traded Funds Risks. By investing in an ETF, a risk exists that the value of the underlying securities of the ETF may decrease. In addition, the market price of ETF shares may trade at a discount to their net asset value or an active trading market for ETF shares may not develop or be maintained. ETFs in which the Fund invests typically will not be able to replicate exactly the performance of the indices they track. The Fund also will bear its proportionate share of the ETF’s fees (including management and advisory fees) and expenses.

Foreign Securities Risks. Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets, and possible imposition of foreign withholding taxes.

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Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund’s total return.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Market Direction Risks. Because the Fund will typically hold both long and short positions, the Fund’s results will suffer both when a general market advance occurs and the Fund holds significant “short” positions or when a general market decline occurs and the Fund holds significant “long” positions.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

Sector Risks. Companies with similar characteristics, such as those within similar industries, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Short Sales Risks. The risk on a short sale is the risk of loss if the value of a security sold short increases prior to the delivery date, since the Fund must pay more for the security than it received from the purchaser in the short sale. In addition, it is possible that the Fund’s securities held long will decline in value at the same time that the value of the securities sold short increase in value, increasing the potential for loss. Therefore, the risk of loss may be theoretically unlimited.

Stock Market Risks. The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. The value of equity securities purchased by the Fund may decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. If the value of the Fund’s investments goes down, you may lose money. U.S. and international markets have experienced significant volatility in recent years, which may increase the risks of investing in the securities held by the Fund. Policy changes by the U.S. government and/or Federal Reserve, such as raising interest rates, also could cause increased volatility in financial markets and higher levels of shareholder redemptions, which could have a negative impact on the Fund. Adverse market events also may lead to increased shareholder

redemptions, which could cause the Fund to experience a loss or difficulty in selling investments to meet such redemptions.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows the Fund’s total returns for the 2016 calendar year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar year 2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 11.96%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	12/31/2016	5.07%
Worst quarter	6/30/2016	(1.15)%

(1)	Because Class R6 shares have not yet commenced operations, no performance data is available. Class R6 shares are expected to have substantially similar annual returns as Class I shares because the shares are invested in the same

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portfolio of securities. The performance of Class R6 shares is expected to be higher than Class I shares because Class R6 shares have lower Total Annual Fund Operating Expenses.

After-tax returns are calculated using the highest historical individual marginal federal income tax rates and do not reflect the effect of any applicable state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors holding shares through tax-deferred programs, such as IRAs or 401(k) plans. After-tax returns are shown only for Class I and after-tax returns for Class A and Class R6 will vary.

The Return After Taxes on Distributions and Sale of Fund Shares may be higher than other return figures when a capital loss is realized on the sale of Fund shares which provides an assumed tax benefit to the shareholder that increases the after-tax return.

The MSCI All Country World Index is a free float-adjusted market capitalization index that is designed to measure the equity market performance of developed and emerging markets.

The Lipper Alternative Long/Short Equity Funds Index (LALSEFI) tracks the total return performance of the 30 largest mutual funds included in this Lipper category.

Management of the Fund

Adviser. BMO Asset Management Corp.

Portfolio Managers. Jay Kaufman, Ernesto Ramos, Ph.D., and David Rosenblatt have co-managed the Fund since its inception in 2015. Mr. Kaufman, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2010. Dr. Ramos, Head of Quantitative Equity Strategy and a Managing Director of the Adviser, joined the Adviser in 2005. Mr. Rosenblatt, a Director and Portfolio Manager of the Adviser, joined the Adviser in 2012.

Purchase and Sale of Fund Shares

Minimums. To open an account, your first investment must be at least $1,000 for Class A shares and $1,000,000 for Class I shares. For Class A, the minimum subsequent purchase amount is $50. Eligible retirement plans and fee-based wrap programs generally may open an account and purchase Class R6 shares by contacting BMO Funds U.S. Services.

Sale of Fund Shares. Please contact your plan administrator or recordkeeper in order to sell (redeem) Class R6 shares from your retirement plan.You may sell (redeem) your Class A or Class I shares of the Fund on any day the New York Stock Exchange is open for business using one of the following methods, depending on the elections you made in your account application:

Phone. Call 1-800-236-FUND (3863).

Wire/Electronic Transfer. Upon written request sent to the address below under “Mail,” redemption proceeds can be directly deposited by Electronic Funds Transfer or wired to your previously designated domestic commercial bank.

Mail. Send a written request, indicating your name, the Fund name, your account number, and the number of shares or the dollar amount you want to redeem, to: BMO Funds U.S. Services, P.O. Box 55931, Boston, MA 02205-5931.

Systematic Withdrawal Program. If your account balance is at least $10,000, you may have predetermined amounts of at least $100 withdrawn from your account on a monthly or quarterly basis.

BMO Funds Website. Go to www.bmofundsus.com.

Tax Information

The Fund intends to make distributions that may be taxed as ordinary income or capital gains for federal income tax purposes.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

68	Alternative Funds

also known as high yield securities or “junk bonds.” Municipal securities include fixed and floating rate debt obligations of states, territories, and possessions of the U.S., and political subdivisions and financing authorities of these entities that provide income exempt from federal income tax (including federal AMT). Fund investments are selected after assessing factors such as the cyclical trend in interest rates, the shape of the municipal yield curve, tax rates, sector valuation, and municipal bond supply factors.

From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.

Principal Risks

The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A., or any of its affiliates, and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.

Call Risks. If the securities in which the Fund invests are redeemed by the issuer before maturity (or “called”), the Fund may have to reinvest the proceeds in securities that pay a lower interest rate, which may decrease the Fund’s yield. This will most likely happen when interest rates are declining.

Credit Risks. Credit risk is the possibility that an issuer or counterparty will default on a security or repurchase agreement by failing to pay interest or principal when due. If an issuer defaults, the Fund may lose money. Lower credit ratings correspond to higher credit risk. Bonds rated lower than BBB or Baa have speculative characteristics.

High Yield Securities Risks. High yield securities, also referred to as “junk bonds” or non-investment grade securities, are debt securities rated lower than BBB by Standard & Poor’s or Baa by Moody’s Investors Service. These securities tend to be more sensitive to economic conditions than are higher-rated securities, generally involve more credit risk than securities in the higher-rated categories, and are predominantly considered to be speculative. The issuers of high yield securities are typically more leveraged and the risk of loss due to default by an issuer of high yield securities is significantly greater than issuers of higher-rated securities because such securities are generally unsecured and are often subordinated to other creditors. The Fund may have difficulty disposing of certain high yield securities because a thin trading market for such securities may exist.

Income Risks. The Fund’s income could decline due to falling market interest rates. In a falling interest rate environment, the Fund may be required to invest its assets in lower-yielding securities.

Interest Rate Risks. Prices of fixed income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed income securities fall. Interest rate changes have a greater effect on the price of fixed income securities with longer maturities. Interest rate changes also are influenced by a number of factors including government policy, inflation expectations, and supply and demand.

Liquidity Risks. Liquidity risk refers to the possibility that the trading market for a particular type of security becomes less liquid or the Fund may not be able to sell or buy a security or close out an investment contract at a favorable price or time. The market for lower-quality debt instruments, including junk bonds, is generally less liquid than the market for higher-quality debt instruments. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on the Fund’s performance. Infrequent trading of securities also may lead to an increase in their price volatility. Illiquidity may result from political, economic, or issuer specific events or overall market disruptions.

Management Risks. The Adviser’s judgments about the attractiveness, value, and potential appreciation of the Fund’s investments may prove to be incorrect. Accordingly, no guarantee exists that the investment techniques used by the Fund’s managers will produce the desired results.

Municipal Securities Risks. Municipal bonds are subject to risks based on many factors, including economic and regulatory developments, changes or proposed changes in the federal and state tax structure, deregulation, court rulings, and other factors. The value of municipal securities may be affected more by supply and demand factors or the creditworthiness of the issuer than by market interest rates. Repayment of municipal securities depends on the ability of the issuer or project backing such securities to generate taxes or revenues. There is a risk that interest may be taxable on a municipal security that is otherwise expected to produce tax-exempt interest.

Portfolio Turnover Risks. A high portfolio turnover rate (100% or more) may result in the realization and distribution to shareholders of a greater amount of capital gains than if the Fund had a low portfolio turnover rate. A higher tax liability may result. High portfolio turnover also may result in higher transaction costs, which may negatively affect Fund performance.

70	Fixed Income Funds

Sector Risks. The Fund may invest its assets in municipal securities that finance similar projects, such as those relating to education, health care, transportation, and utilities. To the extent the Fund invests its assets in a particular sector, the Fund’s performance may be more susceptible to any economic, business, or other developments that generally affect that sector.

Fund Performance

The bar chart and table show the historical performance of the Fund’s shares and provide some indication of the risks of investing in the Fund. The bar chart shows how the Fund’s total returns before taxes have varied from year to year, while the table compares the Fund’s average annual total returns to the returns of a broad measure of market performance and an index of funds with similar investment objectives. Please keep in mind that past performance, before and after taxes, does not represent how the Fund will perform in the future. Investors may obtain updated performance information for the Fund at www.bmofundsus.com.

Class I — Annual Total Returns (calendar years 2010-2016)

The return for the Class I shares of the Fund from January 1, 2017 through September 30, 2017 was 1.04%.

During the periods shown in the bar chart for the Fund:

	Quarter Ended	Returns
Best quarter	9/30/2010	0.60%
Worst quarter	6/30/2013	(0.06)%