Additional Information on Investment Strategies

Equity securities include common stock and preferred stock (including convertible preferred stock); bonds, notes and debentures convertible into common or preferred stock; stock purchase warrants and rights; equity interests in trusts; general and limited partnerships and limited liability companies; and depositary receipts.

From time to time the Portfolio may invest in shares of companies through initial public offerings (IPOs). IPOs have the potential to produce substantial gains for the Portfolio. There is no assurance that the Portfolio will have access to profitable IPOs and therefore investors should not rely on past gains as an indication of future performance. The investment performance of the Portfolio during periods when it is unable to invest significantly or at all in IPOs may be lower than during periods when it is able to do so. In addition, as the Portfolio increases in size, the impact of IPOs on its performance will generally decrease. Securities issued in IPOs are subject to many of the same risks as investing in companies with smaller market capitalizations. Securities issued in IPOs have no trading history, and information about the companies may be available for very limited periods. In addition, the prices of securities sold in IPOs may be highly volatile or may decline shortly after the initial public offering.

The Portfolio may invest in companies that have relatively small market capitalizations. These organizations will normally have more limited product lines, markets and financial resources and will be dependent upon a more limited management group than larger capitalized companies. In addition, it is more difficult to get information on smaller companies, which tend to be less well known, have shorter operating histories, do not have significant ownership by large investors and are followed by relatively few securities analysts. The securities of smaller capitalized companies are often traded in the over-the-counter markets and may have fewer market makers and wider price spreads. This may result in greater price movements and less ability to sell the Portfolio’s investment than if the Portfolio held the securities of larger, more established companies.

The Portfolio’s investments will be concentrated in energy and natural resources companies. Because the Portfolio is concentrated in these companies, it may present more risks than if it were broadly diversified over numerous industries and sectors of the economy. A downturn in the energy and natural resources industry would have a larger impact on the Portfolio than on an investment company that does not concentrate in such companies. Energy companies can be significantly affected by the supply of and demand for specific products and services, the supply and demand for oil and gas, the price of oil and gas, exploration and production spending, government regulation, world events and economic conditions. Natural resource companies can be significantly affecting by events relating to international political developments, energy conservation, the success of exploration projects, commodity prices, and tax and government regulations. At times, the performance of securities of energy and natural resources companies will lag the performance of other industries or the broader market as a whole.

Other risks inherent in investing in energy and natural resources companies include:

Supply and Demand Risk . A decrease in the production of natural gas, natural gas liquids (“NGLs”), crude oil, coal or other energy commodities or a decrease in the volume of such commodities available for transportation, mining, processing, storage or distribution may adversely impact the financial performance of energy and natural resources companies. Production declines and volume decreases could be caused by various factors, including catastrophic events affecting production, depletion of resources, labor difficulties, environmental proceedings, increased regulations, equipment failures and unexpected maintenance problems, import supply disruption, increased competition from alternative energy sources or commodity prices. Alternatively, a sustained decline in demand for such commodities could also adversely affect the financial performance of energy and natural resources

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companies. Factors which could lead to a decline in demand include economic recession or other adverse economic conditions, higher fuel taxes or governmental regulations, increases in fuel economy, consumer shifts to the use of alternative fuel sources, changes in commodity prices, or weather.

Depletion and Exploration Risk . Many energy and natural resources companies are either engaged in the production of natural gas, NGLs, crude oil, refined petroleum products or coal, or are engaged in transporting, storing, distributing and processing these items on behalf of shippers. To maintain or grow their revenues, these companies or their customers need to maintain or expand their reserves through exploration of new sources of supply, through the development of existing sources, through acquisitions, or through long-term contracts to acquire reserves. The financial performance of energy and natural resources companies may be adversely affected if they, or the companies to whom they provide the service, are unable to cost-effectively acquire additional reserves sufficient to replace the natural decline.

Regulatory Risk . Energy and natural resources companies are subject to significant federal, state and local government regulation in virtually every aspect of their operations, including how facilities are constructed, maintained and operated, environmental and safety controls, and the prices they may charge for the products and services they provide. Various governmental authorities have the power to enforce compliance with these regulations and the permits issued under them, and violators are subject to administrative, civil and criminal penalties, including civil fines, injunctions or both. Stricter laws, regulations or enforcement policies could be enacted in the future which would likely increase compliance costs and may adversely affect the financial performance of energy and natural resources companies.

Commodity Pricing Risk . The operations and financial performance of energy and natural resources companies may be directly affected by energy commodity prices, especially those energy and natural resources companies which own the underlying energy commodity. Commodity prices fluctuate for several reasons, including changes in market and economic conditions, the impact of weather on demand, levels of domestic production and imported commodities, energy conservation, domestic and foreign governmental regulation and taxation and the availability of local, intrastate and interstate transportation systems. Volatility of commodity prices, which may lead to a reduction in production or supply, may also negatively impact the performance of energy and natural resources companies which are solely involved in the transportation, processing, storing, distribution or marketing of commodities. Volatility of commodity prices may also make it more difficult for energy and natural resources companies to raise capital to the extent the market perceives that their performance may be directly or indirectly tied to commodity prices.

Reverse Repurchase Agreements and Other Borrowings. The Portfolio is authorized to borrow money for temporary purposes. If the securities held by the Portfolio should decline in value while borrowings are outstanding, the net asset value of the Portfolio’s outstanding shares will decline in value by proportionately more than the decline in value suffered by the Portfolio’s securities. Borrowings may be made by the Portfolio through reverse repurchase agreements under which the Portfolio sells portfolio securities to financial institutions such as banks and broker-dealers and agrees to repurchase them at a particular date and price. Such Agreements are considered to be borrowings under the 1940 Act. Reverse repurchase agreements involve the risks that the interest income earned in the investment of the proceeds will be less than the interest expense, that the market value of the securities sold by the Portfolio may decline below the price of the securities the Portfolio is obligated to repurchase and that the securities may not be returned to the Portfolio. During the time a reverse repurchase agreement is outstanding, BlackRock will designate liquid assets on its books and records in an amount equal to the amount of the Portfolio’s commitments to the extent required by SEC guidelines. The Portfolio’s reverse repurchase agreements, together with any other borrowings, will not exceed, in the aggregate, 33  ¹ / 3 % of the value of its total assets. Whenever borrowings exceed 5% of the Portfolio’s total assets, the Portfolio will not make any investments.

Preferred Stock. The Portfolio may invest in preferred stocks. Preferred stock has a preference over common stock in liquidation (and generally dividends as well) but is subordinated to the liabilities of the issuer in all respects. As a general rule, the market value of preferred stock with a fixed dividend rate and no conversion element varies inversely with interest rates and perceived credit risk, while the market price of convertible preferred stock generally also reflects some element of conversion value. Because preferred stock is junior to debt securities and other obligations of the issuer, deterioration in the credit quality of the issuer will cause greater changes in the value of a preferred stock than in a more senior debt security with similar stated yield characteristics. Unlike interest payments on debt securities, preferred stock dividends are payable only if declared by the issuer’s board of directors. Preferred stock also may be subject to optional or mandatory redemption provisions.

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Convertible Securities. The Portfolio each may invest in convertible securities. A convertible security is a bond, debenture, note, preferred stock or other security that may be converted into or exchanged for a prescribed amount of common stock or other equity security of the same or a different issuer within a particular period of time at a specified price or formula. A convertible security entitles the holder to receive interest paid or accrued on debt or the dividend paid on preferred stock until the convertible security matures or is redeemed, converted or exchanged. Before conversion, convertible securities have characteristics similar to nonconvertible income securities in that they ordinarily provide a stable stream of income with generally higher yields than those of common stocks of the same or similar issuers, but lower yields than comparable nonconvertible securities. The value of a convertible security is influenced by changes in interest rates, with investment value declining as interest rates increase and increasing as interest rates decline. The credit standing of the issuer and other factors also may have an effect on the convertible security’s investment value. Convertible securities rank senior to common stock in a corporation’s capital structure but are usually subordinated to comparable nonconvertible securities. Convertible securities may be subject to redemption at the option of the issuer at a price established in the convertible security’s governing instrument.

Pay-in-kind Bonds. The Portfolio may invest in Pay-in-kind, or PIK, bonds. PIK bonds are bonds which pay interest through the issuance of additional debt or equity securities. Similar to zero coupon obligations, pay-in-kind bonds also carry additional risk as holders of these types of securities realize no cash until the cash payment date unless a portion of such securities is sold and, if the issuer defaults, the Portfolio may obtain no return at all on its investment. The market price of pay-in-kind bonds is affected by interest rate changes to a greater extent, and therefore tends to be more volatile, than that of securities which pay interest in cash. Additionally, current federal tax law requires the holder of certain pay-in-kind bonds to accrue income with respect to these securities prior to the receipt of cash payments. To maintain its qualification as a regulated investment company and avoid liability for federal income and excise taxes, the Portfolio may be required to distribute income accrued with respect to these securities and may have to dispose of portfolio securities under disadvantageous circumstances in order to generate cash to satisfy these distribution requirements.

Money Market Obligations of Domestic Banks, Non-U.S. Banks and Non-U.S. Branches of U.S. Banks. The Portfolio may purchase bank obligations, such as certificates of deposit, notes, bankers’ acceptances and time deposits, including instruments issued or supported by the credit of U.S. or non-U.S. banks or savings institutions having total assets at the time of purchase in excess of $1 billion. These obligations may be general obligations of the parent bank or may be limited to the issuing branch or subsidiary by the terms of a specific obligation or by government regulation. The assets of a bank or savings institution will be deemed to include the assets of its domestic and non-U.S. branches for purposes of the Portfolio’s investment policies. Investments in short-term bank obligations may include obligations of non-U.S. banks and domestic branches of non-U.S. banks, and also non-U.S. branches of domestic banks.

Mortgage Related and Asset-Backed Securities. The Portfolio may make investments in residential and commercial mortgage-related and other asset-backed securities (i.e., securities backed by home equity loans, installment sale contracts, credit card receivables or other assets) issued by governmental entities and private issuers.

Asset-backed securities are generally issued as pass-through certificates, which represent undivided fractional ownership interests in an underlying pool of assets, or as debt instruments, which are also known as collateralized obligations, and are generally issued as the debt of a special purpose entity organized solely for the purpose of owning such assets and issuing such debt. Asset-backed securities are often backed by a pool of assets representing the obligations of a number of different parties.

The yield characteristics of certain mortgage-related and asset-backed securities may differ from traditional debt securities. One such major difference is that all or a principal part of the obligations may be prepaid at any time because the underlying assets (i.e., loans) may be prepaid at any time. As a result, a decrease in interest rates in the market may result in increases in the level of prepayments as borrowers, particularly mortgagors, refinance and repay their loans. An increased prepayment rate with respect to a mortgage-related or asset-backed security subject to such a prepayment feature will have the effect of shortening the maturity of the security. If the Portfolio has

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purchased such a mortgage-related or asset-backed security at a premium, a faster than anticipated prepayment rate could result in a loss of principal to the extent of the premium paid. Conversely, an increase in interest rates may result in lengthening the anticipated maturity of such a security because expected prepayments are reduced. A prepayment rate that is faster than expected will reduce the yield to maturity of such a security, while a prepayment rate that is slower than expected may have the opposite effect of increasing yield to maturity.

In general, the assets supporting non-mortgage asset-backed securities are of shorter maturity than the assets supporting mortgage-related securities. Like other fixed-income securities, when interest rates rise the value of an asset-backed security generally will decline; however, when interest rates decline, the value of an asset-backed security with prepayment features may not increase as much as that of other fixed-income securities, and, as noted above, changes in market rates of interest may accelerate or retard prepayments and thus affect maturities.

These characteristics may result in a higher level of price volatility for asset-backed securities with prepayment features under certain market conditions. In addition, while the trading market for short-term mortgages and asset-backed securities is ordinarily quite liquid, in times of financial stress the trading market for these securities sometimes becomes restricted.

The relationship between prepayments and interest rates may give some high-yielding mortgage- related and asset-backed securities less potential for growth in value than conventional bonds with comparable maturities. During periods of falling interest rates, the reinvestment of prepayment proceeds by the Portfolio will generally be at lower rates than the rates that were carried by the obligations that have been prepaid. Because of these and other reasons, mortgage-related and other asset-backed security’s total return and maturity may be difficult to predict precisely.

The Portfolio from time to time may purchase in the secondary market (i) certain mortgage pass-through securities packaged and master serviced by PNC Mortgage Securities Corp. (“PNC Mortgage”) (or Sears Mortgage if PNC Mortgage succeeded to the rights and duties of Sears Mortgage) or Midland Loan Services, Inc. (“Midland”), or (ii) mortgage-related securities containing loans or mortgages originated by PNC Bank, National Association (“PNC Bank”) or its affiliates. It is possible that under some circumstances, PNC Mortgage, Midland or other affiliates could have interests that are in conflict with the holders of these mortgage-backed securities, and such holders could have rights against PNC Mortgage, Midland or their affiliates. For example, if PNC Mortgage, Midland or their affiliates engaged in negligence or willful misconduct in carrying out its duties as a master servicer, then any holder of the mortgage-backed security could seek recourse against PNC Mortgage, Midland or their affiliates, as applicable. Also, as a master servicer, PNC Mortgage, Midland or their affiliates may make certain representations and warranties regarding the quality of the mortgages and properties underlying a mortgage-backed security. If one or more of those representations or warranties is false, then the holders of the mortgage-backed securities could trigger an obligation of PNC Mortgage, Midland or their affiliates, as applicable, to repurchase the mortgages from the issuing trust. Finally, PNC Mortgage, Midland or their affiliates may own securities that are subordinate to the senior mortgage-backed securities owned by the Portfolio.

There are a number of important differences among the agencies and instrumentalities of the U.S. Government that issue mortgage-related securities and among the securities that they issue. Mortgage-related securities guaranteed by the Government National Mortgage Association (“GNMA”) include Ginnie Maes, which are guaranteed as to the timely payment of principal and interest by GNMA and such guarantee is backed by the full faith and credit of the United States. GNMA is a wholly-owned U.S. Government corporation within the Department of Housing and Urban Development. GNMA certificates also are supported by the authority of GNMA to borrow funds from the U.S. Treasury to make payments under its guarantee. Mortgage-related securities issued by the Federal National Mortgage Association (“FNMA”) include FNMA guaranteed Mortgage Pass-Through Certificates (also known as “Fannie Maes”) which are solely the obligations of the FNMA, are not backed by or entitled to the full faith and credit of the United States and are supported by the right of the issuer to borrow from the Treasury. FNMA is a government-sponsored organization owned entirely by private stockholders. Fannie Maes are guaranteed as to timely payment of principal and interest by FNMA. Mortgage-related securities issued by the Federal Home Loan Mortgage Corporation (“FHLMC”) include FHLMC Mortgage Participation Certificates (also known as “Freddie Macs” or “PCs”). FHLMC is a corporate instrumentality of the United States, created pursuant to an Act of Congress, which is owned entirely by Federal Home Loan Banks. Freddie Macs, which are not guaranteed by the United States or by any Federal Home Loan Banks and do not constitute a debt or obligation of

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the United States or of any Federal Home Loan Bank, are supported by the right of the issuer to borrow from the Treasury. Freddie Macs entitle the holder to timely payment of interest, which is guaranteed by the FHLMC. FHLMC guarantees either ultimate collection or timely payment of all principal payments on the underlying mortgage loans. When FHLMC generally does not guarantee timely payment of principal, FHLMC may remit the amount due on account of its guarantee of ultimate payment of principal at any time after default on an underlying mortgage, but in no event later than one year after it becomes payable. FHLMC “Gold” PCs are guaranteed as to timely payment of interest and principal by FHLMC and represent 100% of the current fixed-rate production of the majority of FHLMC fixed-rate securities outstanding.

The Portfolio may invest in multiple class pass-through securities, including collateralized mortgage obligations (“CMOs”) and real estate mortgage investment conduit (“REMIC”) pass-through or participation certificates (“REMIC Certificates”). These multiple class securities may be issued by GNMA, U.S. Government agencies or instrumentalities, including FNMA and FHLMC, or by trusts formed by private originators of, or investors in, mortgage loans. In general, CMOs and REMICs are debt obligations of a legal entity that are collateralized by, and multiple class pass-through securities represent direct ownership interests in, a pool of residential or commercial mortgage loans or mortgage pass-through securities (the “Mortgage Assets”), the payments on which are used to make payments on the CMOs or multiple pass-through securities. Investors may purchase beneficial interests in CMOs and REMICs, which are known as “regular” interests or “residual” interests. The residual in a CMO or REMIC structure generally represents the interest in any excess cash flow or tax liability remaining after making required payments of principal of and interest on the CMOs or REMICs, as well as the related administrative expenses of the issuer. Residual interests generally are junior to, and may be significantly more volatile than, “regular” CMO and REMIC interests. The Portfolio do not currently intend to purchase residual interests. The markets for CMOs and REMICs may be more illiquid than those of other securities.

Each class of CMOs or REMIC Certificates, often referred to as a “tranche,” is issued at a specific adjustable or fixed interest rate and must be fully retired no later than its final distribution date. Principal prepayments on the Mortgage Assets underlying the CMOs or REMIC Certificates may cause some or all of the classes of CMOs or REMIC Certificates to be retired substantially earlier than their final distribution dates. Generally, interest is paid or accrues on all classes of CMOs or REMIC Certificates on a monthly basis.

The principal of and interest on the Mortgage Assets may be allocated among the several classes of CMOs or REMIC Certificates in various ways. In certain structures (known as “sequential pay” CMOs or REMIC Certificates), payments of principal, including any principal prepayments, on the Mortgage Assets generally are applied to the classes of CMOs or REMIC Certificates in the order of their respective final distribution dates. Thus, no payment of principal will be made on any class of sequential pay CMOs or REMIC Certificates until all other classes having an earlier final distribution date have been paid in full.

Additional structures of CMOs or REMIC Certificates include, among others, “parallel pay” CMOs and REMIC Certificates. Parallel pay CMOs or REMIC Certificates are those which are structured to apply principal payments and prepayments of the Mortgage Assets to two or more classes concurrently on a proportionate or disproportionate basis. These simultaneous payments are taken into account in calculating the final distribution date of each class. A wide variety of REMIC Certificates may be issued in the parallel pay or sequential pay structures. These securities include accrual certificates (also known as “Z-Bonds”), which only accrue interest at a specified rate until all other certificates having an earlier final distribution date have been retired and are converted thereafter to an interest-paying security.

Classes of CMOs include interest only (“IOs”), principal only (“POs”), planned amortization classes (“PACs”) and targeted amortization classes (“TACs”). IOs and POs are stripped mortgage-backed securities representing interests in a pool of mortgages the cash flow from which has been separated into interest and principal components. IOs (interest only securities) receive the interest portion of the cash flow while POs (principal only securities) receive the principal portion. IOs and POs can be extremely volatile in response to changes in interest rates. As interest rates rise and fall, the value of IOs tends to move in the same direction as interest rates. POs perform best when prepayments on the underlying mortgages rise since this increases the rate at which the investment is returned and the yield to maturity on the PO. When payments on mortgages underlying a PO are slow, the life of the PO is lengthened and the yield to maturity is reduced.

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The scheduled principal payments for PAC Certificates generally have the highest priority on each payment date after interest due has been paid to all classes entitled to receive interest currently. Shortfalls, if any, are added to the amount payable on the next payment date. The PAC Certificate payment schedule is taken into account in calculating the final distribution date of each class of PAC. In order to create PAC tranches, one or more tranches generally must be created that absorb most of the volatility in the underlying mortgage assets. These tranches (often called “supports” or “companion” tranches) tend to have market prices and yields that are more volatile than the PAC classes.

TACs are similar to PACs in that they require that specified amounts of principal be applied on each payment date to one or more classes of REMIC Certificates. A PAC’s payment schedule, however, remains in effect as long as prepayment rates on the underlying mortgages do not exceed certain ranges. In contrast, a TAC provides investors with protection, to a certain level, against either faster than expected or slower than expected prepayment rates, but not both. TACs thus provide more cash flow stability than a regular sequential paying class, but less than a PAC. TACs also tend to have market prices and yields that are more volatile than PACs.

FNMA REMIC Certificates are issued and guaranteed as to timely distribution of principal and interest by FNMA. In addition, FNMA will be obligated to distribute on a timely basis to holders of FNMA REMIC Certificates required installments of principal and interest and to distribute the principal balance of each class of REMIC Certificates in full, whether or not sufficient funds are otherwise available.

For FHLMC REMIC Certificates, FHLMC guarantees the timely payment of interest, and also guarantees the ultimate payment of principal as payments are required to be made on the underlying mortgage participation certificates (“PCs”). PCs represent undivided interests in specified level payment, residential mortgages or participations therein purchased by FHLMC and placed in a PC pool. With respect to principal payments on PCs, FHLMC generally guarantees ultimate collection of all principal of the related mortgage loans without offset or deduction. FHLMC also guarantees timely payment of principal on certain PCs, referred to as “Gold PCs.”

U.S. Government Obligations. The Portfolio may purchase obligations issued or guaranteed by the U.S. Government and U.S. Government agencies and instrumentalities. Obligations of certain agencies and instrumentalities of the U.S. Government are supported by the full faith and credit of the U.S. Treasury. Others are supported by the right of the issuer to borrow from the U.S. Treasury; and still others are supported only by the credit of the agency or instrumentality issuing the obligation. No assurance can be given that the U.S. Government will provide financial support to U.S. Government-sponsored instrumentalities if it is not obligated to do so by law. Certain U.S. Treasury and agency securities may be held by trusts that issue participation certificates (such as Treasury income growth receipts (“TIGRs”) and certificates of accrual on Treasury certificates (“CATs”)). These certificates, as well as Treasury receipts and other stripped securities, represent beneficial ownership interests in either future interest payments or the future principal payments on U.S. Government obligations. These instruments are issued at a discount to their “face value” and may (particularly in the case of stripped mortgage-backed securities) exhibit greater price volatility than ordinary debt securities because of the manner in which their principal and interest are returned to investors.

Examples of the types of U.S. Government obligations that may be held by the Portfolio include U.S. Treasury Bills, Treasury Notes, and Treasury Bonds and the obligations of the Federal Housing Administration, Farmers Home Administration, Export-Import Bank of the United States, Small Business Administration, Government National Mortgage Association, Federal National Mortgage Association, Federal Financing Bank, General Services Administration, Student Loan Marketing Association, Central Bank for Cooperatives, Federal Home Loan Banks, Federal Home Loan Mortgage Corporation, Federal Intermediate Credit Banks, Federal Land Banks, Farm Credit Banks System, Maritime Administration, Tennessee Valley Authority, and Washington D.C. Armory Board. The Portfolio may also invest in mortgage-related securities issued or guaranteed by U.S. Government agencies and instrumentalities, including such instruments as obligations of the GNMA, FNMA and FHLMC.

Supranational Organization Obligations . The Portfolio may purchase debt securities of supranational organizations such as the World Bank, which are chartered to promote economic development.

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Lease Obligations. The Portfolio may hold participation certificates in a lease, an installment purchase contract, or a conditional sales contract (“lease obligations”).

BlackRock will monitor the credit standing of each borrower and each entity providing credit support and/or a put option relating to lease obligations. In determining whether a lease obligation is liquid, BlackRock will consider, among other factors, the following: (i) whether the lease can be cancelled; (ii) the degree of assurance that assets represented by the lease could be sold; (iii) the strength of the lessee’s general credit (e.g., its debt, administrative, economic, and financial characteristics); (iv) in the case of a municipal lease, the likelihood that the municipality would discontinue appropriating funding for the leased property because the property is no longer deemed essential to the operations of the municipality (e.g., the potential for an “event of nonappropriation”); (v) legal recourse in the event of failure to appropriate; (vi) whether the security is backed by a credit enhancement such as insurance; and (vii) any limitations which are imposed on the lease obligor’s ability to utilize substitute property or services other than those covered by the lease obligation.

Commercial Paper. The Portfolio may purchase commercial paper rated (at the time of purchase) “A-1” by S&P or “Prime-1” by Moody’s or, when deemed advisable by BlackRock, “high quality” issues rated “A-2” or “Prime-2” by S&P or Moody’s, respectively. These ratings symbols are described in Appendix A.

Commercial paper purchasable by the Portfolio includes “Section 4(2) paper,” a term that includes debt obligations issued in reliance on the “private placement” exemption from registration afforded by Section 4(2) of the Securities Act of 1933. Section 4(2) paper is restricted as to disposition under the Federal securities laws, and is frequently sold (and resold) to institutional investors such as the Fund through or with the assistance of investment dealers who make a market in the Section 4(2) paper, thereby providing liquidity. Certain transactions in Section 4(2) paper may qualify for the registration exemption provided in Rule 144A under the Securities Act of 1933.

Repurchase Agreements. The Portfolio may agree to purchase securities from financial institutions subject to the seller’s agreement to repurchase them at an agreed upon time and price (“repurchase agreements”). Repurchase agreements are, in substance, loans. Default by or bankruptcy of a seller would expose the Portfolio to possible loss because of adverse market action, expenses and/or delays in connection with the disposition of the underlying obligations.

The repurchase price under the repurchase agreements generally equals the price paid by the Portfolio plus interest negotiated on the basis of current short-term rates (which may be more or less than the rate on securities underlying the repurchase agreement). The financial institutions with which the Portfolio may enter into repurchase agreements will be banks and non-bank dealers, if such banks and non-bank dealers are deemed creditworthy by BlackRock. BlackRock will continue to monitor creditworthiness of the seller under a repurchase agreement, and will require the seller to maintain during the term of the agreement the value of the securities subject to the agreement to equal at least the repurchase price (including accrued interest and any accrued premium). The accrued premium is the amount specified in the repurchase agreement or the daily amortization of the difference between the purchase price and the repurchase price specified in the repurchase agreement. BlackRock will mark-to-market daily the value of the securities. Securities subject to repurchase agreements will be held by the Fund’s custodian (or sub-custodian) in the Federal Reserve/Treasury book-entry system or by another authorized securities depository. Repurchase agreements are considered to be loans by the Portfolio under the 1940 Act.

The use of repurchase agreements involves certain risks. For example, if the seller of securities under a repurchase agreement defaults on its obligation to repurchase the underlying securities, as a result of its bankruptcy or otherwise, the Portfolio will seek to dispose of such securities, which action could involve costs or delays. If the seller becomes insolvent and subject to liquidation or reorganization under applicable bankruptcy or other laws, the Portfolio’s ability to dispose of the underlying securities may be restricted. Finally, it is possible that the Portfolio may not be able to substantiate its interest in the underlying securities. To minimize this risk, the securities underlying the repurchase agreement will be held by the custodian at all times in an amount at least equal to the repurchase price, including accrued interest. If the seller fails to repurchase the securities, the Portfolio may suffer a loss to the extent proceeds from the sale of the underlying securities are less than the repurchase price.

Investment Grade Debt Obligations. The Portfolio may invest in “investment grade securities,” which are securities rated in the four highest rating categories of an NRSRO or deemed to be of equivalent quality by

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BlackRock. It should be noted that debt obligations rated in the lowest of the top four ratings (i.e., “Baa” by Moody’s or “BBB” by S&P) are considered to have some speculative characteristics and are more sensitive to economic change than higher rated securities. If an investment grade security of the Portfolio is subsequently downgraded below investment grade, BlackRock will consider such an event in determining whether the Portfolio should continue to hold the security. Subject to its investment strategies, there is no limit on the amount of such downgraded securities the Portfolio may hold, although under normal market conditions BlackRock does not expect to hold these securities to a material extent.

See Appendix A to this Statement of Additional Information for a description of applicable securities ratings.

Non-Investment Grade Securities. The Portfolio may invest in non-investment grade or “high yield” fixed income or convertible securities commonly known to investors as “junk bonds.”

High yield securities are bonds that are issued by a company whose credit rating (based on rating agencies’ evaluation of the likelihood of repayment) necessitates offering a higher coupon and yield on its issues when selling them to investors who may otherwise be hesitant in purchasing the debt of such a company. While generally providing greater income and opportunity for gain, non-investment grade debt securities may be subject to greater risks than securities which have higher credit ratings, including a high risk of default, and their yields will fluctuate over time. High yield securities will generally be in the lower rating categories of recognized rating agencies (rated “Ba” or lower by Moody’s or “BB” or lower by S&P) or will be non-rated. The credit rating of a high yield security does not necessarily address its market value risk, and ratings may from time to time change, positively or negatively, to reflect developments regarding the issuer’s financial condition. High yield securities are considered to be speculative with respect to the capacity of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than higher rated securities.

While the market values of high yield securities tend to react less to fluctuations in interest rates than do those of higher rated securities, the values of high yield securities often reflect individual corporate developments and have a high sensitivity to economic changes to a greater extent than do higher rated securities. Issuers of high yield securities are often in the growth stage of their development and/or involved in a reorganization or takeover. The companies are often highly leveraged (have a significant amount of debt relative to shareholders’ equity) and may not have available to them more traditional financing methods, thereby increasing the risk associated with acquiring these types of securities. In some cases, obligations with respect to high yield securities are subordinated to the prior repayment of senior indebtedness, which will potentially limit the Portfolio’s ability to fully recover principal or to receive interest payments when senior securities are in default. Thus, investors in high yield securities have a lower degree of protection with respect to principal and interest payments then do investors in higher rated securities.

During an economic downturn, a substantial period of rising interest rates or a recession, highly leveraged issuers of high yield securities may experience financial distress possibly resulting in insufficient revenues to meet their principal and interest payment obligations, to meet projected business goals and to obtain additional financing. An economic downturn could also disrupt the market for lower-rated securities and adversely affect the value of outstanding securities, the Portfolio’s net asset value and the ability of the issuers to repay principal and interest. If the issuer of a security held by the Portfolio defaulted, the Portfolio may not receive full interest and principal payments due to it and could incur additional expenses if it chose to seek recovery of its investment.

The secondary markets for high yield securities are not as liquid as the secondary markets for higher rated securities. The secondary markets for high yield securities are concentrated in relatively few market makers and participants in the markets are mostly institutional investors, including insurance companies, banks, other financial institutions and mutual funds. In addition, the trading volume for high yield securities is generally lower than that for higher rated securities and the secondary markets could contract under adverse market or economic conditions independent of any specific adverse changes in the condition of a particular issuer. Under certain economic and/or market conditions, the Portfolio may have difficulty disposing of certain high yield securities due to the limited number of investors in that sector of the market. An illiquid secondary market may adversely affect the market price of the high yield security, which may result in increased difficulty selling the particular issue and obtaining accurate market quotations on the issue when valuing the Portfolio’s assets. Market quotations on high yield securities are available only from a limited number of dealers, and such quotations may not be the actual prices available for a purchase or sale.

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The high yield markets may react strongly to adverse news about an issuer or the economy, or to the perception or expectation of adverse news, whether or not it is based on fundamental analysis. Additionally, prices for high yield securities may be affected by legislative and regulatory developments. These developments could adversely affect the Portfolio’s net asset value and investment practices, the secondary market for high yield securities, the financial condition of issuers of these securities and the value and liquidity of outstanding high yield securities, especially in a thinly traded market. For example, federal legislation requiring the divestiture by federally insured savings and loan associations of their investments in high yield bonds and limiting the deductibility of interest by certain corporate issuers of high yield bonds adversely affected the market in the past.

When the secondary market for high yield securities becomes more illiquid, or in the absence of readily available market quotations for such securities, the relative lack of reliable objective data makes it more difficult to value the Portfolio’s securities, and judgment plays a more important role in determining such valuations. Increased illiquidity in the junk bond market, in combination with the relative youth and growth of the market for such securities, also may affect the ability of the Portfolio to dispose of such securities at a desirable price. Additionally, if the secondary markets for high yield securities contract due to adverse economic conditions or for other reasons, certain of the Portfolio’s liquid securities may become illiquid and the proportion of the Portfolio’s assets invested in illiquid securities may significantly increase.

The rating assigned by a rating agency evaluates the safety of a non-investment grade security’s principal and interest payments, but does not address market value risk. Because such ratings of the ratings agencies may not always reflect current conditions and events, in addition to using recognized rating agencies and other sources, BlackRock performs its own analysis of the issuers whose non-investment grade securities the Portfolio holds. Because of this, the Portfolio’s performance may depend more on BlackRock’s own credit analysis than in the case of mutual funds investing in higher-rated securities. For a description of these ratings, see Appendix A.

In selecting non-investment grade securities, BlackRock considers factors such as those relating to the creditworthiness of issuers, the ratings and performance of the securities, the protections afforded the securities and the diversity of the Portfolio. BlackRock continuously monitors the issuers of non-investment grade securities held by the Portfolio for their ability to make required principal and interest payments, as well as in an effort to control the liquidity of the Portfolio so that it can meet redemption requests. If a security’s rating is reduced below the minimum credit rating that is permitted for the Portfolio, BlackRock will consider whether the Portfolio should continue to hold the security.

In the event that the Portfolio experiences an unexpected level of net redemptions, the Portfolio could be forced to sell its holdings without regard to the investment merits, thereby decreasing the assets upon which the Portfolio’s rate of return is based.

The costs attributable to investing in the high yield markets are usually higher for several reasons, such as higher investment research costs and higher commission costs.

Mezzanine Investments. The Portfolio may invest in certain high yield securities known as mezzanine investments, which are subordinated debt securities which are generally issued in private placements in connection with an equity security (e.g., with attached warrants). Such mezzanine investments may be issued with or without registration rights. Similar to other high yield securities, maturities of mezzanine investments are typically seven to ten years, but the expected average life is significantly shorter at three to five years. Mezzanine investments are usually unsecured and subordinate to other obligations of the issuer.

When-Issued Purchases and Forward Commitments. The Portfolio may purchase securities on a “when-issued” basis and may purchase or sell securities on a “forward commitment,” including “TBA” (to be announced) basis. These transactions involve a commitment by the Portfolio to purchase or sell particular securities with payment and delivery taking place at a future date (perhaps one or two months later), and permit the Portfolio to lock in a price or yield on a security it owns or intends to purchase, regardless of future changes in interest rates or market action. When-issued and forward commitment transactions involve the risk, however, that the price or yield obtained in a transaction may be less favorable than the price or yield available in the market when the securities delivery takes place.

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When the Portfolio agrees to purchase securities on this basis, BlackRock will designate liquid assets on its books and records in an amount equal to the amount of the Portfolio’s commitments to the extent required by SEC guidelines. It may be expected that the market value of the Portfolio’s net assets will fluctuate to a greater degree when it sets aside portfolio securities to cover such purchase commitments than when it sets aside cash.

If deemed advisable as a matter of investment strategy, the Portfolio may dispose of or renegotiate a commitment after it has been entered into, and may sell securities it has committed to purchase before those securities are delivered to the Portfolio on the settlement date. In these cases the Portfolio may realize a taxable capital gain or loss.

When the Portfolio engages in when-issued, TBA or forward commitment transactions, it relies on the other party to consummate the trade. Failure of such party to do so may result in the Portfolio’s incurring a loss or missing an opportunity to obtain a price considered to be advantageous.

The market value of the securities underlying a commitment to purchase securities, and any subsequent fluctuations in their market value, is taken into account when determining the market value of the Portfolio starting on the day the Portfolio agrees to purchase the securities. The Portfolio does not earn interest on the securities it has committed to purchase until they are paid for and delivered on the settlement date.

Rights Offerings and Warrants to Purchase. The Portfolio may participate in rights offerings and may purchase warrants, which are privileges issued by corporations enabling the owners to subscribe to and purchase a specified number of shares of the corporation at a specified price during a specified period of time. Subscription rights normally have a short life span to expiration. The purchase of rights or warrants involves the risk that the Portfolio could lose the purchase value of a right or warrant if the right to subscribe to additional shares is not exercised prior to the rights’ and warrants’ expiration. Also, the purchase of rights and/or warrants involves the risk that the effective price paid for the right and/or warrant added to the subscription price of the related security may exceed the value of the subscribed security’s market price such as when there is no movement in the level of the underlying security. Warrants acquired by the Portfolio in units or attached to other securities are not subject to this restriction.

Non-U.S. Investments . The Portfolio may invest in non-U.S. securities. Investing in non-U.S. securities involves risks not typically associated with investing in securities of companies organized and operated in the United States. Because non-U.S. securities generally are denominated and pay dividends or interest in non-U.S. currencies, the value of the Portfolio that invests in non-U.S. securities as measured in U.S. dollars will be affected favorably or unfavorably by changes in exchange rates.

The Portfolio’s investments in non-U.S. securities may also be adversely affected by changes in non-U.S. political or social conditions, diplomatic relations, confiscatory taxation, expropriation, limitation on the removal of funds or assets, or imposition of (or change in) exchange control regulations. In addition, changes in government administrations or economic or monetary policies in the U.S. or abroad could result in appreciation or depreciation of portfolio securities and could favorably or adversely affect the Portfolio’s operations.

In general, less information is publicly available with respect to non-U.S. issuers than is available with respect to U.S. companies. Most non-U.S. companies are also not subject to the uniform accounting and financial reporting requirements applicable to issuers in the United States. While the volume of transactions effected on non-U.S. stock exchanges has increased in recent years, it remains appreciably below that of the New York Stock Exchange. Accordingly, the Portfolio’s non-U.S. investments may be less liquid and their prices may be more volatile than comparable investments in securities in U.S. companies. In addition, there is generally less government supervision and regulation of securities exchanges, brokers and issuers in foreign countries than in the United States.

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Investments in non-dollar denominated securities may be on either a currency hedged or unhedged basis, and the Portfolio may hold from time to time various non-U.S. currencies pending investment or conversion into U.S. dollars. Some of these instruments may have the characteristics of futures contracts. In addition, certain Portfolio may engage in non-U.S. currency exchange transactions to seek to protect against changes in the level of future exchange rates which would adversely affect the Portfolio’s performance. These investments and transactions involving non-U.S. securities, currencies, options (including options that relate to non-U.S. currencies), futures, hedging and cross-hedging are described below and under “-Interest Rate Transactions and Currency Swaps,” “-Non-U.S. Currency Transactions” and “-Options and Futures Contracts.”

To maintain greater flexibility, the Portfolio may invest in instruments which have the characteristics of futures contracts. These instruments may take a variety of forms, such as debt securities with interest or principal payments determined by reference to the value of a currency or commodity at a future point in time. The risks of such investments could reflect the risks of investing in futures, currencies and securities, including volatility and illiquidity.

Non-U.S. investments of the Portfolio may include: (a) debt obligations issued or guaranteed by non-U.S. sovereign governments or their agencies, authorities, instrumentalities or political subdivisions, including a non-U.S. state, province or municipality; (b) debt obligations of supranational organizations such as the World Bank, Asian Development Bank, European Investment Bank, and European Economic Community; (c) debt obligations of non-U.S. banks and bank holding companies; (d) debt obligations of domestic banks and corporations issued in non-U.S. currencies; (e) debt obligations denominated in the Euro; and (f) non-U.S. corporate debt securities and commercial paper. Such securities may include loan participations and assignments, convertible securities and zero-coupon securities.

Political and economic structures in emerging market countries may be undergoing significant evolution and rapid development, and these countries may lack the social, political and economic stability characteristic of more developed countries. Some of these countries may have in the past failed to recognize private property rights and have at times nationalized or expropriated the assets of private companies. As a result the risks described above, including the risks of nationalization or expropriation of assets, may be heightened. In addition, unanticipated political or social developments may affect the value of investments in these countries and the availability to the Portfolio of additional investments in emerging market countries. The small size and inexperience of the securities markets in certain of these countries and the limited volume of trading in securities in these countries may make investments in the countries illiquid and more volatile than investments in Japan or most Western European countries. There may be little financial or accounting information available with respect to issuers located in certain emerging market countries, and it may be difficult to assess the value or prospects of an investment in such issuers.

The expense ratios of the Portfolio can be expected to be higher than those of Portfolio investing primarily in domestic securities. The costs attributable to investing abroad are usually higher for several reasons, such as the higher cost of custody of non-U.S. securities, higher commissions paid on comparable transactions on non-U.S. markets and additional costs arising from delays in settlements of transactions involving non-U.S. securities.

Brady Bonds. The Portfolio’s emerging market debt securities may include emerging market governmental debt obligations commonly referred to as Brady Bonds. Brady Bonds are securities created through the exchange of existing commercial bank loans to sovereign entities for new obligations in connection with debt restructurings under a debt restructuring plan introduced by former U.S. Secretary of the Treasury, Nicholas F. Brady (the “Brady Plan”). Brady Plan debt restructurings have been implemented in a number of countries, including: Argentina, Bolivia, Brazil, Bulgaria, Costa Rica, the Dominican Republic, Ecuador, Jordan, Mexico, Niger, Nigeria, Panama, Peru, the Philippines, Poland, Uruguay, and Venezuela.

Brady Bonds may be collateralized or uncollateralized, are issued in various currencies (primarily the U.S. dollar) and are actively traded in the over-the-counter secondary market. Brady Bonds are not considered to be U.S. Government securities. U.S. dollar-denominated, collateralized Brady Bonds, which may be fixed rate par bonds or floating rate discount bonds, are generally collateralized in full as to principal by U.S. Treasury zero-coupon bonds having the same maturity as the Brady Bonds. Interest payments on these Brady Bonds generally are collateralized on a one-year or longer rolling-forward basis by cash or securities in an amount that, in the case of fixed rate bonds, is equal to at least one year of interest payments or, in the case of floating rate bonds, initially is equal to at least one

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year’s interest payments based on the applicable interest rate at that time and is adjusted at regular intervals thereafter. Certain Brady Bonds are entitled to “value recovery payments” in certain circumstances, which in effect constitute supplemental interest payments but generally are not collateralized. Brady Bonds are often viewed as having three or four valuation components: (i) the collateralized repayment of principal at final maturity; (ii) the collateralized interest payments; (iii) the uncollateralized interest payments; and (iv) any uncollateralized repayment of principal at maturity (the uncollateralized amounts constitute the “residual risk”).

Most Mexican Brady Bonds issued to date have principal repayments at final maturity fully collateralized by U.S. Treasury zero-coupon bonds (or comparable collateral denominated in other currencies) and interest coupon payments collateralized on an 18-month rolling-forward basis by funds held in escrow by an agent for the bondholders. A significant portion of the Venezuelan Brady Bonds and the Argentine Brady Bonds issued to date have repayments at final maturity collateralized by U.S. Treasury zero-coupon bonds (or comparable collateral denominated in other currencies) and/or interest coupon payments collateralized on a 14-month (for Venezuela) or 12-month (for Argentina) rolling-forward basis by securities held by the Federal Reserve Bank of New York as collateral agent.

Brady Bonds involve various risk factors described above associated with investing in non-U.S. securities, including the history of defaults with respect to commercial bank loans by public and private entities of countries issuing Brady Bonds. There can be no assurance that Brady Bonds in which the Portfolio may invest will not be subject to restructuring arrangements or to requests for new credit, which may cause the Portfolio to suffer a loss of interest or principal on any of its holdings.

ADRs, EDRs and GDRs . The Portfolio may invest in both sponsored and unsponsored American Depository Receipts (“ADRs”), European Depository Receipts (“EDRs”), Global Depository Receipts (“GDRs”) and other similar global instruments. ADRs typically are issued by an American bank or trust company and evidence ownership of underlying securities issued by a non-U.S. corporation. EDRs, which are sometimes referred to as Continental Depository Receipts, are receipts issued in Europe, typically by non-U.S. banks and trust companies, that evidence ownership of either non-U.S. or domestic underlying securities. GDRs are depository receipts structured like global debt issues to facilitate trading on an international basis. Unsponsored ADR, EDR and GDR programs are organized independently and without the cooperation of the issuer of the underlying securities. As a result, available information concerning the issuer may not be as current as for sponsored ADRs, EDRs and GDRs, and the prices of unsponsored ADRs, EDRs and GDRs may be more volatile than if such instruments were sponsored by the issuer. Investments in ADRs, EDRs and GDRs present additional investment considerations as described under “-Non-U.S. Investments.”

Options and Futures Contracts . To the extent consistent with its investment objective, the Portfolio may write (i.e., sell) covered call options, buy call options, write secured put options and buy put options for the purpose of hedging or earning additional income, which may be deemed speculative or cross-hedging. The Portfolio may also purchase exchange-listed and over-the-counter put and call options on non-U.S. currencies, and may write covered call options on up to 100% of the currencies in its portfolio. For the payment of a premium, the purchaser of an option obtains the right to buy (in the case of a call option) or to sell (in the case of a put option) the item which is the subject of the option at a stated exercise price for a specific period of time. These options may relate to particular securities, securities indices, or the yield differential between two securities, or non-U.S. currencies, and may or may not be listed on a securities exchange and may or may not be issued by the Options Clearing Corporation. The Portfolio will not purchase put and call options when the aggregate premiums on outstanding options exceed 5% of its total assets at the time of purchase, and will not write options on more than 25% of the value of its total assets (measured at the time an option is written). There is no limit on the amount of the Portfolio’s assets that can be put at risk through the use of options. In addition, unlisted options are not subject to the protections afforded purchasers of listed options issued by the Options Clearing Corporation, which performs the obligations of its members if they default.

Options on particular securities may be more volatile than the underlying securities, and therefore, on a percentage basis, an investment in the underlying securities themselves. The Portfolio will write call options only if they are “covered.” In the case of a call option on a security, the option is “covered” if the Portfolio owns the security underlying the call or has an absolute and immediate right to acquire that security without additional cash consideration (or, if additional cash consideration is required, liquid assets in such amount are designated on

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BlackRock’s books and records in an amount equal to the amount of the Portfolio’s commitments to the extent required by SEC guidelines) upon conversion or exchange of other securities held by it. For a call option on an index, the option is covered if the Portfolio maintains with its custodian liquid assets equal to the contract value. A call option is also covered if the Portfolio holds a call on the same security or index as the call written where the exercise price of the call held is (i) equal to or less than the exercise price of the call written, or (ii) greater than the exercise price of the call written provided the difference is maintained by the Portfolio in liquid assets designated on BlackRock’s books and records to the extent required by SEC guidelines.

When the Portfolio purchases an option, the premium paid by it is recorded as an asset of the Portfolio. When the Portfolio writes a put option, in return for receipt of the premium, it assumes the obligation to pay the strike price for the instrument underlying the option if the other party to the option chooses to exercise it. When the Portfolio writes an option, an amount equal to the net premium (the premium less the commission) received by the Portfolio is included in the liability section of the Portfolio’s statement of assets and liabilities as a deferred credit. The amount of this asset or deferred credit will be subsequently marked-to-market to reflect the current value of the option purchased or written. The current value of the traded option is the last sale price or, in the absence of a sale, the mean between the last bid and asked prices. If an option purchased by the Portfolio expires unexercised the Portfolio realizes a loss equal to the premium paid. If the Portfolio enters into a closing sale transaction on an option purchased by it, the Portfolio will realize a gain if the premium received by the Portfolio on the closing transaction is more than the premium paid to purchase the option, or a loss if it is less. If an option written by the Portfolio expires on the stipulated expiration date or if the Portfolio enters into a closing purchase transaction, it will realize a gain (or loss if the cost of a closing purchase transaction exceeds the net premium received when the option is sold) and the deferred credit related to such option will be eliminated. If an option written by the Portfolio is exercised, the proceeds of the sale will be increased by the net premium originally received and the Portfolio will realize a gain or loss.

There are several risks associated with transactions in options on securities and indexes. For example, there are significant differences between the securities and options markets that could result in an imperfect correlation between these markets, causing a given transaction not to achieve its objectives. In addition, a liquid secondary market for particular options, whether traded over-the-counter or on a national securities exchange (“Exchange”) may be absent for reasons which include the following: there may be insufficient trading interest in certain options; restrictions may be imposed by an Exchange on opening transactions or closing transactions or both; trading halts, suspensions or other restrictions may be imposed with respect to particular classes or series of options or underlying securities; unusual or unforeseen circumstances may interrupt normal operations on an Exchange; the facilities of an Exchange or the Options Clearing Corporation may not at all times be adequate to handle current trading volume; or one or more Exchanges could, for economic or other reasons, decide or be compelled at some future date to discontinue the trading of options (or a particular class or series of options), in which event the secondary market on that Exchange (or in that class or series of options) would cease to exist, although outstanding options that had been issued by the Options Clearing Corporation as a result of trades on that Exchange would continue to be exercisable in accordance with their terms.

To the extent consistent with its investment objective, the Portfolio may also invest in futures contracts and options on futures contracts (interest rate futures contracts, index futures contracts, or non-U.S. exchange futures contracts as applicable). These instruments are described in Appendix B to this Statement of Additional Information. There is no limit on the amount of the Portfolio’s assets that can be put at risk through the use of futures contracts and the value of the Portfolio’s futures contracts and options on futures contracts may equal or exceed 100% of its total assets.

To maintain greater flexibility, the Portfolio may invest in instruments which have characteristics similar to futures contracts. These instruments may take a variety of forms, such as debt securities with interest or principal payments determined by reference to the value of a commodity at a future point in time. The risks of such investments could reflect the risks of investing in futures and securities, including volatility and illiquidity.

Futures contracts obligate the Portfolio, at maturity, to take or make delivery of securities, the cash value of a securities index or a stated quantity of a non-U.S. currency. The Portfolio may sell a futures contract in order to offset an expected decrease in the value of its portfolio positions that might otherwise result from a market decline or currency exchange fluctuation. The Portfolio may do so either to hedge the value of its securities portfolio as a

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whole, or to protect against declines occurring prior to sales of securities in the value of the securities to be sold. In addition, the Portfolio may utilize futures contracts in anticipation of changes in the composition of its holdings or in currency exchange rates.

The Portfolio may purchase and sell put and call options on futures contracts traded on an exchange or board of trade. When the Portfolio purchases an option on a futures contract, it has the right to assume a position as a purchaser or a seller of a futures contract at a specified exercise price during the option period. When the Portfolio sells an option on a futures contract, it becomes obligated to sell or buy a futures contract if the option is exercised. In connection with the Portfolio’s position in a futures contract or related option, BlackRock will designate liquid assets on its books and records in an amount equal to the amount of the Portfolio’s commitments or will otherwise cover its position in accordance with applicable SEC requirements.

The primary risks associated with the use of futures contracts and options are (a) the imperfect correlation between the change in market value of the instruments held by the Portfolio and the price of the futures contract or option; (b) possible lack of a liquid secondary market for a futures contract and the resulting inability to close a futures contract when desired; (c) losses caused by unanticipated market movements, which are potentially unlimited; (d) BlackRock inability to predict correctly the direction of securities prices, interest rates, currency exchange rates and other economic factors; and (e) the possibility that the counterparty will default in the performance of its obligations.

The Fund and the Portfolio have claimed exclusions from the definition of the term “commodity pool operator” under the Commodity Exchange Act and, therefore, are not subject to registration or regulation as commodity pool operators under the Act.

Interest Rate Transactions, Currency Swaps and Swaptions . The Portfolio may enter into interest rate swaps, may purchase or sell interest rate caps and floors and may enter into options on swap agreements (“swaptions”). The Portfolio may enter into these transactions primarily to preserve a return or spread on a particular investment or portion of their holdings, as a duration management technique or to protect against an increase in the price of securities the Portfolio anticipates purchasing at a later date. They may also be used for speculation to increase returns.

In order to protect against currency fluctuations, the Portfolio may enter into currency swaps. Currency swaps involve the exchange of the rights of the Portfolio and another party to make or receive payments in specified currencies.

The Portfolio may enter into interest rate swaps, caps, floors and swaptions on either an asset-based or liability-based basis, depending on whether the Portfolio is hedging its assets or its liabilities. Swap agreements are two-party contracts entered into primarily by institutional investors for periods ranging from a few weeks to more than one year. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments, which may be adjusted for an interest factor. The gross returns to be exchanged or “swapped” between the parties are generally calculated with respect to a “notional amount,” i.e., the return on or increase in value of a particular dollar amount invested at a particular interest rate or in a “basket” of securities representing a particular index. Forms of swap agreements include interest rate caps, under which, in return for a premium, one party agrees to make payments to the other to the extent that interest rates exceed a specified rate, or “cap”; and interest rate floors, under which, in return for a premium, one party agrees to make payments to the other to the extent that interest rates fall below a specified rate, or “floor”.

The Portfolio will usually enter into interest rate swaps on a net basis, i.e., the two payment streams are netted out, with the Portfolio receiving or paying, as the case may be, only the net amount of the two payments. In contrast, currency swaps usually involve the delivery of the entire principal value of one designated currency in exchange for the other designated currency.

A swaption is a contract that gives a counterparty the right (but not the obligation) to enter into a new swap agreement or to shorten, extend, cancel or otherwise modify an existing swap agreement, at some designated future time on specified terms. The Portfolio may write (sell) and purchase put and call swaptions.

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Whether the Portfolio’s use of swap agreements or swaptions will be successful in furthering their investment objectives will depend on BlackRock’s ability to predict correctly whether certain types of investments are likely to product greater returns than other investments. Because they are two-party contracts and because they may have terms of greater than seven days, swap agreements may be considered to be illiquid. Moreover, the Portfolio bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. The Portfolio will enter into swap agreements only with counterparties that meet certain standards of creditworthiness. If there is a default by the other party to such a transaction, the Portfolio will have contractual remedies pursuant to the agreements related to the transaction. The swap market has grown substantially in recent years with a large number of banks and investment banking firms acting both as principals and as agents utilizing standardized swap documentation. As a result, the swap market has become relatively liquid. Caps and floors are less liquid than swaps.

The swaps market is largely unregulated. It is possible that developments in the swaps market, including potential government regulation, could adversely affect the Portfolio’s ability to terminate existing swap agreements or to realize amounts to be received under such agreements.

Depending on the terms of the particular option agreement, the Portfolio will generally incur a greater degree of risk when it writes a swaption than it will incur when it purchases a swaption. When the Portfolio purchases a swaption, it risks losing only the amount of the premium it has paid should it decide to let the option expire unexercised. However, when the Portfolio writes a swaption, upon exercise of the option the Portfolio will become obligated according to the terms of the underlying agreement.

The Portfolio will accrue the net amount of the excess, if any, of its obligations over its entitlements with respect to each interest rate or currency swap or swaption on a daily basis and its adviser or sub-adviser will designate liquid assets on its books and records in an amount having an aggregate net asset value at least equal to the accrued excess to the extent required by SEC guidelines. If the other party to an interest rate swap defaults, the Portfolio’s risk of loss consists of the net amount of interest payments that the Portfolio is contractually entitled to receive. Because currency swaps usually involve the delivery of the entire principal value of one designated currency in exchange for the other designated currency, the entire principal value of a currency swap is subject to the risk that the other party to the swap will default on its contractual delivery obligations.

Credit Default Swaps. To the extent consistent with their investment strategies, the Portfolio may, for hedging purposes, make use of credit default swaps, which are contracts whereby one party makes periodic payments to a counterparty in exchange for the right to receive from the counterparty a payment equal to the par (or other agreed-upon) value of a referenced debt obligation in the event of a default by the issuer of the debt obligation. The use of credit default swaps may be limited by the Portfolio’s limitations on illiquid investments. When used for hedging purposes, the Portfolio would be the buyer of a credit default swap contract. In that case, the Portfolio would be entitled to receive the par (or other agreed-upon) value of a referenced debt obligation from the counterparty to the contract in the event of a default by a third party, such as a U.S. or non-U.S. issuer, on the debt obligation. In return, the Portfolio would pay to the counterparty a periodic stream of payments over the term of the contract provided that no event of default has occurred. If no default occurs, the Portfolio would have spent the stream of payments and received no benefit from the contract. Credit default swaps involve the risk that the investment may expire worthless and would generate income only in the event of an actual default by the issuer of the underlying obligation (as opposed to a credit downgrade or other indication of financial instability). It would also involve credit risk - that the seller may fail to satisfy its payment obligations to the Portfolio in the event of a default.

When the Portfolio is the seller of a credit default swap contract, it receives the stream of payments but is obligated to pay upon default of the referenced debt obligation. As the seller, the Portfolio would effectively add leverage to its portfolio because, in addition to its total assets, the Portfolio would be subject to investment exposure on the notional amount of the swap.

In addition to the risks applicable to derivatives generally, credit default swaps involve special risks because they are difficult to value, are highly susceptible to liquidity and credit risk, and generally pay a return to the party that has paid the premium only in the event of an actual default by the issuer of the underlying obligation (as opposed to a credit downgrade or other indication of financial difficulty).

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Non-U.S. Currency Transactions. The Portfolio may engage in non-U.S. currency exchange transactions to protect against uncertainty in the level of future exchange rates. The Portfolio may engage in non-U.S. currency exchange transactions in connection with the purchase and sale of portfolio securities (transaction hedging) and to protect the value of specific portfolio positions (position hedging). The Portfolio may purchase or sell a non-U.S. currency on a spot (or cash) basis at the prevailing spot rate in connection with the settlement of transactions in portfolio securities denominated in that non-U.S. currency, and may also enter into contracts to purchase or sell non-U.S. currencies at a future date (“forward contracts”).

Forward non-U.S. currency exchange contracts involve an obligation to purchase or sell a specified currency at a future date at a price set at the time of the contract. Forward currency contracts do not eliminate fluctuations in the values of portfolio securities but rather allow the Portfolio to establish a rate of exchange for a future point in time. The Portfolio may use forward non-U.S. currency exchange contracts to hedge against movements in the value of non-U.S. currencies relative to the U.S. dollar in connection with specific portfolio transactions or with respect to portfolio positions. The Portfolio generally may enter into forward non-U.S. currency exchange contracts when deemed advisable by its adviser or sub-adviser under two circumstances. First, when entering into a contract for the purchase or sale of a security, the Portfolio may enter into a forward non-U.S. currency exchange contract for the amount of the purchase or sale price to protect against variations, between the date the security is purchased or sold and the date on which payment is made or received, in the value of the non-U.S. currency relative to the U.S. dollar or other non-U.S. currency.

Second, when the Portfolio’s adviser anticipates that a particular non-U.S. currency may decline relative to the U.S. dollar or other leading currencies, in order to reduce risk, the Portfolio may enter into a forward contract to sell, for a fixed amount, the amount of non-U.S. currency approximating the value of some or all of the Portfolio’s securities denominated in such non-U.S. currency. With respect to any forward non-U.S. currency contract, it will not generally be possible to match precisely the amount covered by that contract and the value of the securities involved due to the changes in the values of such securities resulting from market movements between the date the forward contract is entered into and the date it matures. In addition, while forward contracts may offer protection from losses resulting from declines in the value of a particular non-U.S. currency, they also limit potential gains which might result from increases in the value of such currency. The Portfolio will also incur costs in connection with forward non-U.S. currency exchange contracts and conversions of non-U.S. currencies and U.S. dollars.

The Portfolio may also engage in proxy hedging transactions to reduce the effect of currency fluctuations on the value of existing or anticipated holdings of portfolio securities. Proxy hedging is often used when the currency to which the Portfolio is exposed is difficult to hedge or to hedge against the dollar. Proxy hedging entails entering into a forward contract to sell a currency whose changes in value are generally considered to be linked to a currency or currencies in which some or all of the Portfolio’s securities are, or are expected to be, denominated, and to buy U.S. dollars. Proxy hedging involves some of the same risks and considerations as other transactions with similar instruments. Currency transactions can result in losses to the Portfolio if the currency being hedged fluctuates in value to a degree or in a direction that is not anticipated. In addition, there is the risk that the perceived linkage between various currencies may not be present or may not be present during the particular time that the Portfolio is engaging in proxy hedging. The Portfolio may also cross-hedge currencies by entering into forward contracts to sell one or more currencies that are expected to decline in value relative to other currencies to which the Portfolio has or in which the Portfolio expects to have portfolio exposure. For example, the Portfolio may hold both Canadian government bonds and Japanese government bonds, and the adviser may believe that Canadian dollars will deteriorate against Japanese yen. The Portfolio would sell Canadian dollars to reduce its exposure to that currency and buy Japanese yen. This strategy would be a hedge against a decline in the value of Canadian dollars, although it would expose the Portfolio to declines in the value of the Japanese yen relative to the U.S. dollar.

In general, currency transactions are subject to risks different from those of other portfolio transactions, and can result in greater losses to the Portfolio than would otherwise be incurred, even when the currency transactions are used for hedging purposes.

Liquid assets equal to the amount of the Portfolio’s assets that could be required to consummate forward contracts will be segregated on the books and records of the adviser or sub-adviser to the extent required by SEC guidelines. For the purpose of determining the adequacy of the securities so segregated, the securities will be valued at market or fair value. If the market or fair value of such securities declines, additional cash or securities will be added.

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Securities Lending. The Portfolio may seek additional income by lending securities on a short-term basis. The securities lending agreements will require that the loans be secured by collateral in cash, U.S. Government securities or irrevocable bank letters of credit maintained on a current basis equal in value to at least the market value of the loaned securities. The Portfolio may not make such loans in excess of 33  ¹ / 3 % of the value of its total assets. Securities loans involve risks of delay in receiving additional collateral or in recovering the loaned securities, or possibly loss of rights in the collateral if the borrower of the securities becomes insolvent.

The Portfolio would continue to accrue interest on loaned securities and would also earn income on investment collateral for such loans. Any cash collateral received by the Portfolio in connection with such loans may be invested in a broad range of high quality, U.S. dollar-denominated money market instruments that meet Rule 2a-7 restrictions for money market funds. Specifically, cash collateral may be invested in any of the following instruments: (a) securities issued or guaranteed as to principal and interest by the U.S. Government or by its agencies or instrumentalities and related custodial receipts; (b) “first tier” quality commercial paper and other obligations issued or guaranteed by U.S. and non-U.S. corporations and other issuers rated (at the time of purchase) in the highest rating category by at least two NRSRO’s, or one if only rated by one NRSRO; (c) U.S. dollar-denominated obligations issued or supported by the credit of U.S. or non-U.S. banks or savings institutions with total assets in excess of $1 billion (including obligations of non-U.S. branches of such banks) (i.e., CD’s, BA’s and time deposits); (d) repurchase agreements relating to the above instruments, as well as corporate debt; and (e) unaffiliated and, to the extent permitted by SEC guidelines, affiliated money market funds. Any such investments must be rated “first tier” and must have a maturity of 397 days or less from the date of purchase.

Yields and Ratings. The yields on certain obligations are dependent on a variety of factors, including general market conditions, conditions in the particular market for the obligation, the financial condition of the issuer, the size of the offering, the maturity of the obligation and the ratings of the issue. The ratings of Moody’s, Fitch Investor Services, Inc. (“Fitch”) and S&P represent their respective opinions as to the quality of the obligations they undertake to rate. Ratings, however, are general and are not absolute standards of quality. Consequently, obligations with the same rating, maturity and interest rate may have different market prices. Subsequent to its purchase by the Portfolio, a rated security may cease to be rated. The Portfolio’s adviser or sub-adviser will consider such an event in determining whether the Portfolio should continue to hold the security. Subject to its other investment strategies, there is no limit on the amount of unrated securities the Portfolio may hold, although under normal market conditions the adviser and sub-adviser do not expect to hold these securities to a material extent.

Investment Companies. The Portfolio may invest in securities issued by other investment companies within the limits prescribed by the 1940 Act and set forth below. The Portfolio may purchase shares of investment companies investing primarily in non-U.S. securities, including so-called “country funds.” Country funds have portfolios consisting exclusively of securities of issuers located in one foreign country. Securities of other investment companies will be acquired within limits prescribed by the 1940 Act. As a shareholder of another investment company, the Portfolio would bear, along with other shareholders, its pro rata portion of the other investment company’s expenses, including advisory fees. These expenses would be in addition to the advisory fees and other expenses the Portfolio bears directly in connection with its own operations.

The Portfolio currently intends to limit its investments so that, as determined immediately after a securities purchase is made: (i) not more than 5% of the value of its total assets will be invested in the securities of any one investment company; (ii) not more than 10% of the value of its total assets will be invested in the aggregate in securities of investment companies as a group; and (iii) not more than 3% of the outstanding voting stock of any one investment company will be owned by the Portfolio or by the Fund as a whole.

Stripped and Zero Coupon Obligations . To the extent consistent with their investment objectives, the Portfolio may purchase Treasury receipts and other “stripped” securities that evidence ownership in either the future interest payments or the future principal payments on U.S. Government and other obligations. These participations, which may be issued by the U.S. Government (or a U.S. Government agency or instrumentality) or by private issuers such as banks and other institutions, are issued at a discount to their “face value,” and may include stripped mortgage-backed securities (“SMBS”). Stripped securities, particularly SMBS, may exhibit greater price volatility

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than ordinary debt securities because of the manner in which their principal and interest are returned to investors, and they are often illiquid. The Portfolio also may purchase “stripped” securities that evidence ownership in the future interest payments or principal payments on obligations of non-U.S. governments.

SMBS are usually structured with two or more classes that receive different proportions of the interest and principal distributions from a pool of mortgage-backed obligations. A common type of SMBS will have one class receiving all of the interest (“IO” or interest-only), while the other class receives all of the principal (“PO” or principal-only). However, in some cases, one class will receive some of the interest and most of the principal while the other class will receive most of the interest and the remainder of the principal. If the underlying obligations experience greater than anticipated prepayments of principal, the Portfolio may fail to fully recoup its initial investment in these securities even if the securities have received the highest rating by a nationally recognized statistical rating organization. The market value of SMBS can be extremely volatile in response to changes in interest rates. The yields on a class of SMBS that receives all or most of the interest are generally higher than prevailing market yields on other mortgage-related obligations because their cash flow patterns are also volatile and there is a greater risk that the initial investment will not be fully recouped.

The Portfolio may invest in zero-coupon bonds, which are normally issued at a significant discount from face value and do not provide for periodic interest payments. Zero-coupon bonds may experience greater volatility in market value than similar maturity debt obligations which provide for regular interest payments. Additionally, current federal tax law requires the holder of certain zero-coupon bonds to accrue income with respect to these securities prior to the receipt of cash payments. To maintain its qualification as a regulated investment company and avoid liability for federal income and excise taxes, the Portfolio may be required to distribute income accrued with respect to these securities and may have to dispose of portfolio securities under disadvantageous circumstances in order to generate cash to satisfy these distribution requirements. See “Taxes.”

Funding Agreements. The Portfolio may invest in guaranteed investment contracts (“GICs”) and similar funding agreements. In connection with these investments, the Portfolio makes cash contributions to a deposit fund of an insurance company’s general account. The insurance company then credits to the Portfolio on a monthly basis guaranteed interest, which is based on an index (such as LIBOR). The funding agreements provide that this guaranteed interest will not be less than a certain minimum rate. The purchase price paid for a funding agreement becomes part of the general assets of the insurance company, and the contract is paid from the general assets of the insurance company. Generally, funding agreements are not assignable or transferable without the permission of the issuing insurance companies, and an active secondary market in some funding agreements does not currently exist.

Short Sales. The Portfolio may only make short sales of securities “against-the-box.” A short sale is a transaction in which the Portfolio sells a security it does not own in anticipation that the market price of that security will decline. The Portfolio may make short sales both as a form of hedging to offset potential declines in long positions in similar securities and in order to maintain portfolio flexibility. In a short sale “against-the-box,” at the time of sale, the Portfolio owns or has the immediate and unconditional right to acquire the identical or similar security at no additional cost. When selling short “against-the-box,” the Portfolio forgoes an opportunity for capital appreciation in the security. The Portfolio have no present intention to engage in short sales.

Interest Rate and Extension Risk. The value of fixed income securities in the Portfolio can be expected to vary inversely with changes in prevailing interest rates. Fixed income securities with longer maturities, which tend to produce higher yields, are subject to potentially greater capital appreciation and depreciation than securities with shorter maturities. The Portfolio are not restricted to any maximum or minimum time to maturity in purchasing individual portfolio securities, and the average maturity of the Portfolio’s assets will vary.

Liquidity Management. As a temporary defensive measure if its adviser determines that market conditions warrant, the Portfolio may invest without limitation in high quality money market instruments. The Portfolio may also invest in high quality money market instruments pending investment or to meet anticipated redemption requests. High quality money market instruments include U.S. government obligations, U.S. government agency obligations, dollar denominated obligations of non-U.S. issuers, bank obligations, including U.S. subsidiaries and branches of non-U.S. banks, corporate obligations, commercial paper, repurchase agreements and obligations of supranational organizations. Generally, such obligations will mature within one year from the date of settlement, but may mature within two years from the date of settlement.

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Illiquid Securities. The Portfolio will not invest more than 15% of its net assets in securities that are illiquid. GICs, variable and floating rate instruments that cannot be disposed of within seven days, and repurchase agreements and time deposits that do not provide for payment within seven days after notice, without taking a reduced price, are subject to these limits. The Portfolio may purchase securities which are not registered under the Securities Act of 1933 (the “1933 Act”) but which can be sold to “qualified institutional buyers” in accordance with Rule 144A under the 1933 Act. These securities will not be considered illiquid so long as it is determined by the adviser or sub-adviser that an adequate trading market exists for the securities. This investment practice could have the effect of increasing the level of illiquidity in the Portfolio during any period that qualified institutional buyers become uninterested in purchasing these restricted securities.

Any securities that are thinly traded or whose resale is restricted can be difficult to sell at the desired time and price. Some of these securities are new and complex, and trade only among institutions; the markets for these securities are still developing, and may not function as efficiently as established markets. Owning a large percentage of restricted or illiquid securities could hamper the fund’s ability to raise cash to meet redemptions. Also, because there may not be an established market price for these securities, the fund may have to estimate their value, which means that their valuation (and, to a much smaller extent, the valuation of the fund) may have a subjective element. Transactions in restricted or illiquid securities may entail registration expense and other transaction costs that are higher than those for transactions in unrestricted or liquid securities. Where registration is required for restricted or illiquid securities a considerable time period may elapse between the time the fund decides to sell the security and the time it is actually permitted to sell the security under an effective registration statement. If during such period, adverse market conditions were to develop, the fund might obtain less favorable pricing terms that when it decided to sell the security.

Guarantees. The Portfolio may purchase securities which contain guarantees issued by an entity separate from the issuer of the security. Generally, the guarantor of a security (often an affiliate of the issuer) will fulfill an issuer’s payment obligations under a security if the issuer is unable to do so.

Portfolio Turnover Rates. The Portfolio’s annual portfolio turnover rate will not be a factor preventing a sale or purchase when the adviser believes investment considerations warrant such sale or purchase. Portfolio turnover may vary greatly from year to year as well as within a particular year. Higher than normal portfolio turnover ( i.e ., 100% or more) may result in increased transaction costs to the Portfolio, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and reinvestment in other securities. The sale of the Portfolio’s securities may result in the recognition of capital gain or loss. Given the frequency of sales, such gain or loss will likely be short-term capital gain or loss. Unlike long-term capital gain, short-term capital gain of individuals is taxable at the same rates as ordinary income. These effects of higher than normal portfolio turnover may adversely affect the Portfolio’s performance.

ADDITIONAL INVESTMENT LIMITATIONS

The Portfolio is subject to the investment limitations enumerated in this subsection which may be changed with respect to the Portfolio only by a vote of the holders of a majority of the Portfolio’s outstanding shares (as defined below under “Miscellaneous”).

1. The Portfolio will cause 25% or more of its total assets at the time of purchase to be invested in the securities of one or more issuers conducting their principal business activities in energy or natural resources industries as described in the Prospectuses. In addition, there is no limitation on investments with respect to (i) instruments issued or guaranteed by the United States, any state, territory or possession of the United States, the District of Columbia or any of their authorities, agencies, instrumentalities or political subdivisions, and (ii) repurchase agreements secured by the instruments described in clause (i). Wholly-owned finance companies will be considered to be in the industries of their parents if their activities are primarily related to financing the activities of the parents; and utilities will be divided according to their services; for example, gas, gas transmission, electric and gas, electric and telephone will each be considered a separate industry.

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The Portfolio may not:

2. Borrow money or issue senior securities, except that the Portfolio may borrow from banks and enter into reverse repurchase agreements for temporary purposes in amounts up to one-third of the value of its total assets at the time of such borrowing; or mortgage, pledge or hypothecate any assets, except in connection with any such borrowing and then in amounts not in excess of one-third of the value of the Portfolio’s total assets at the time of such borrowing. The Portfolio will not purchase securities while its aggregate borrowings (including reverse repurchase agreements and borrowings from banks) in excess of 5% of its total assets are outstanding. Securities held in escrow or separate accounts in connection with the Portfolio’s investment practices are not deemed to be pledged for purposes of this limitation.

3. Purchase or sell real estate, except that the Portfolio may purchase securities of issuers which deal in real estate and may purchase securities which are secured by interests in real estate.

4. Acquire any other investment company or investment company security except in connection with a merger, consolidation, reorganization or acquisition of assets or where otherwise permitted by the 1940 Act.

5. Act as an underwriter of securities within the meaning of the Securities Act of 1933 except to the extent that the purchase of obligations directly from the issuer thereof, or the disposition of securities, in accordance with the Portfolio’s investment objective, policies and limitations may be deemed to be underwriting.

6. Write or sell put options, call options, straddles, spreads, or any combination thereof, except for transactions in options on securities and securities indices, futures contracts and options on futures contracts and currencies.

7. Purchase securities of companies for the purpose of exercising control.

8. Purchase securities on margin, make short sales of securities or maintain a short position, except that (a) this investment limitation shall not apply to the Portfolio’s transactions in futures contracts and related options or the Portfolio’s sale of securities short against the box, and (b) the Portfolio may obtain short-term credit as may be necessary for the clearance of purchases and sales of portfolio securities.

9. Purchase or sell commodity contracts, or invest in oil, gas or mineral exploration or development programs, except that the Portfolio may, to the extent appropriate to its investment policies, purchase securities of companies engaging in whole or in part in such activities and may enter into futures contracts and related options.

10. Make loans, except that the Portfolio may purchase and hold debt instruments and enter into repurchase agreements in accordance with its investment objective and policies and may lend portfolio securities.

11. Purchase or sell commodities except that the Portfolio may, to the extent appropriate to its investment policies, purchase securities of companies engaging in whole or in part in such activities, may engage in currency transactions and may enter into futures contracts and related options.

Unless otherwise indicated, all limitations apply only at the time that a transaction is undertaken. Any change in the percentage of the Portfolio’s assets invested in certain securities or other instruments resulting from market fluctuations or other changes in the Portfolio’s total assets will not require the Portfolio to dispose of an investment until the adviser determines that it is practicable to sell or close out the investment without undue market or tax consequences.

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