Item 1. Business

Except where the context suggests otherwise, “EFC,” “we,” “us,” and “our” refer to Ellington Financial LLC and its subsidiaries, our “Manager” refers to Ellington Financial Management LLC, our external manager, and “Ellington” refers to Ellington Management Group, L.L.C. and its affiliated investment advisory firms, including our Manager, and “Manager Group” refers collectively to Ellington and its principals (including family trusts established by its principals) and entities in which 100% of the interests are beneficially owned by the foregoing. In certain instances, references to our Manager and services to be provided to us by our Manager may also include services provided by Ellington and its other affiliates from time to time .

Special Note Regarding Forward-Looking Statements

When used in this Annual Report on Form 10-K, in future filings with the Securities and Exchange Commission (“SEC”) or in press releases or other written or oral communications, statements which are not historical in nature, including those containing words such as “believe,” “expect,” “anticipate,” “estimate,” “project,” “plan,” “continue,” “intend,” “should,” “would,” “could,” “goal,” “objective,” “will,” “may,” “seek,” or similar expressions, are intended to identify “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and, as such, may involve known and unknown risks, uncertainties, and assumptions.

Forward-looking statements are based on our beliefs, assumptions, and expectations of our future performance, taking into account all information currently available to us. These beliefs, assumptions, and expectations are subject to risks and uncertainties and can change as a result of many possible events or factors, not all of which are known to us. If a change occurs, our business, financial condition, liquidity, and results of operations may vary materially from those expressed or implied in our forward-looking statements. The following factors are examples of those that could cause actual results to vary from our forward-looking statements: changes in interest rates and the market value of our securities; market volatility; changes in the prepayment rates on the mortgage loans underlying our agency securities; increased rates of default and/or decreased recovery rates on our assets; our ability to borrow to finance our assets; changes in government regulations affecting our business; our ability to maintain our exemption from registration under the Investment Company Act of 1940, as amended (the “Investment Company Act”); and risks associated with investing in real estate assets, including changes in business conditions and the general economy. These and other risks, uncertainties and factors, including the risk factors described under Item 1A of this Annual Report on Form 10-K, could cause our actual results to differ materially from those projected or implied in any forward-looking statements we make. All forward-looking statements speak only as of the date on which they are made. New risks and uncertainties arise over time and it is not possible to predict those events or how they may affect us. Except as required by law, we are not obligated to, and do not intend to, update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

Our Company

Ellington Financial LLC is a specialty finance company formed in August 2007 that specializes in acquiring and managing mortgage-related assets. Our primary objective is to generate attractive, risk-adjusted total returns for our shareholders by making investments that we believe compensate us appropriately for the risks associated with them. We seek to attain this objective by utilizing an opportunistic strategy. Our targeted assets currently include:

We also may opportunistically acquire and manage other types of mortgage-related assets and financial assets, such as residential whole mortgage loans, non-mortgage-related derivatives, and real property.

We believe that we have been organized and have operated so that we have qualified, and will continue to qualify, to be treated for U.S. federal income tax purposes as a partnership and not as an association or a publicly traded partnership taxable

as a corporation.

Effective January 1, 2013, we conduct all of our operations and business activities through Ellington Financial Operating Partnership LLC, our operating partnership subsidiary (the “Operating Partnership”). See Note 13 of the notes to our consolidated financial statements.

Our Manager and Ellington

We are externally managed and advised by our Manager, an affiliate of Ellington, pursuant to a management agreement. Our Manager was formed solely to serve as our manager and does not have any other clients. In addition, our Manager currently does not have any employees and instead relies on the employees of Ellington to perform its obligations to us. Ellington is an investment management firm and registered investment advisor with an 18-year history of investing in a broad spectrum of mortgage-backed securities, or “MBS,” and related derivatives.

The members of our management team include Michael Vranos, founder and Chief Executive Officer of Ellington, who serves as our Co-Chief Investment Officer and a member of our Board of Directors; Laurence Penn, Vice Chairman of Ellington, who serves as our Chief Executive Officer and President and a member of our Board of Directors; Mark Tecotzky, a Managing Director of Ellington, who serves as our Co-Chief Investment Officer; Lisa Mumford, who serves as our dedicated Chief Financial Officer; and Daniel Margolis, General Counsel of Ellington, who serves as our Secretary. Each of these individuals is an officer of our Manager. We currently do not have any employees.

Our Manager is responsible for administering our business activities and day-to-day operations and, pursuant to a services agreement between our Manager and Ellington, relies on the resources of Ellington to support our operations. Ellington has established portfolio management resources for each of our targeted asset classes and an established infrastructure supporting those resources. Through our relationship with our Manager, we benefit from Ellington’s highly analytical investment processes, broad-based deal flow, extensive relationships in the financial community, financial and capital structuring skills, investment surveillance database, and operational expertise. Ellington’s analytic approach to the investment process involves collection of substantial amounts of data regarding historical performance of MBS collateral and MBS market transactions. Ellington analyzes this data to identify possible trends and develops financial models used to support the investment and risk management process. In addition, throughout Ellington’s 18-year history of investing in MBS and related derivatives, it has developed strong relationships with a wide range of dealers and other market participants that provide Ellington access to a broad range of trading opportunities and market information. In addition, our Manager provides us with access to a wide variety of asset acquisition and disposition opportunities and information that assist us in making asset management decisions across our targeted asset classes, which we believe provides us with a significant competitive advantage. We also benefit from Ellington’s finance, accounting, operational, legal, compliance, and administrative functions.

As of December 31, 2012 , Ellington employed over 100 employees and had assets under management of approximately $4.9 billion, of which approximately $3.9 billion comprised our company and various alternative investment vehicles, including hedge funds and various private accounts, and of which approximately $1.1 billion comprised accounts with more traditional mandates.

Our Strategy

We utilize an opportunistic strategy to seek to provide investors with attractive, risk-adjusted total returns by:

Our strategy is adaptable to changing market environments, subject to compliance with the income and other tests that will allow us to continue to be treated as a partnership for U.S. federal income tax purposes and to maintain our exclusion from

regulation as an investment company under the Investment Company Act. As a result, although we focus on the assets described above, our acquisition and management decisions depend on prevailing market conditions and our targeted asset classes may vary over time in response to market conditions. We may engage in a high degree of trading volume as we implement our strategy. Our Manager is authorized to follow very broad investment guidelines and, as a result, we cannot predict our portfolio composition. We may change our strategy and policies without a vote of our shareholders. Moreover, although our independent directors periodically review our investment guidelines and our portfolio, they generally do not review our proposed asset acquisitions or asset management decisions.

Ellington’s investment philosophy revolves around the pursuit of value across various types of MBS and related assets. Ellington seeks investments across a wide range of MBS sectors without any restriction as to ratings, structure, or position in the capital structure. Over time and through market cycles, opportunities will present themselves in varying sectors and in varying forms. By rotating between and allocating among various sectors of the MBS markets and adjusting the extent to which it hedges, Ellington believes that it is able to capitalize on the disparities between these sectors as well as on overall trends in the marketplace, and therefore provide better and more consistent returns for its investors. Disparities between MBS sectors vary from time to time and are driven by a combination of factors. For example, as various MBS sectors fall in and out of favor, the relative yields that the market demands for those sectors may vary. In addition, Ellington’s performance projections for certain sectors may differ from those of other market participants and such disparities will naturally cause us, from time to time, to gravitate towards certain sectors and away from others. Disparities between MBS sectors may also be driven by differences in collateral performance (for example, subprime loans originated before 2005 have generally performed better than subprime loans originated between 2005 and 2007) and in the structure of particular investments (for example, in the timing of cash flow or the level of credit enhancement), and our Manager may believe that other market participants are overestimating or underestimating the value of these differences. Furthermore, we believe that risk management, including opportunistic portfolio hedging and prudent financing and liquidity management, is essential for consistent generation of attractive, risk-adjusted total returns across market cycles.

Ellington’s continued emphasis on and development of proprietary MBS credit, interest rate, and prepayment models, as well as other proprietary research and analytics, underscores the importance it places on a disciplined and analytical approach to fixed income investing, especially in MBS. Our Manager uses Ellington’s proprietary models to identify attractive assets, value these assets, monitor, and forecast the performance of these assets, and opportunistically hedge our credit and interest rate risk. We leverage these skills and resources to seek to meet our objectives.

We believe that our Manager is uniquely qualified to implement our strategy. Our strategy is consistent with Ellington’s investment approach, which is based on its distinctive strengths in sourcing, analyzing, trading, and hedging complex MBS. Furthermore, we believe that Ellington’s extensive experience in buying, selling, analyzing and structuring fixed income securities, coupled with its broad access to market information and trading flows, provides us with a steady flow of opportunities to acquire assets with favorable trade executions.

We also employ a wide variety of hedging instruments and derivative contracts. See “-Risk Management.”

Our Targeted Asset Classes

Our targeted asset classes currently include:

The following briefly discusses the principal types of assets we purchase.

Non-Agency RMBS

We acquire non-Agency RMBS backed by prime jumbo, Alt-A, manufactured housing, and subprime residential mortgage loans. Our non-Agency RMBS holdings can include investment-grade and non-investment grade classes, including the BB-rated, B-rated and non-rated classes.

Non-Agency RMBS are debt obligations issued by private originators of or investors in residential mortgage loans. Non-Agency RMBS generally are issued as CMOs and are backed by pools of whole mortgage loans or by mortgage pass-through certificates. Non-Agency RMBS generally are securitized in senior/subordinated structures, or in excess spread/over-collateralization structures. In senior/subordinated structures, the subordinated tranches generally absorb all losses on the underlying mortgage loans before any losses are borne by the senior tranches. In excess spread/over-collateralization structures, losses are first absorbed by any existing over-collateralization, then borne by subordinated tranches and excess spread, which represents the difference between the interest payments received on the mortgage loans backing the RMBS and the interest due on the RMBS debt tranches, and finally by senior tranches and any remaining excess spread.

Agency RMBS

Our assets in this asset class consist primarily of whole pool (and to a lesser extent, partial pool) pass-through certificates, the principal and interest of which are guaranteed by Fannie Mae, Freddie Mac, or Ginnie Mae, and which are backed by ARMs, hybrid ARMs, or fixed-rate mortgages. In addition to investing in pass-through certificates which are backed by traditional mortgages, we have also invested in Agency RMBS backed by reverse mortgages. Reverse mortgages are mortgage loans for which neither principal nor interest is due until the borrower dies, the home is sold, or other trigger events occur. Mortgage pass-through certificates are securities representing undivided interests in pools of mortgage loans secured by real property where payments of both interest and principal, plus prepaid principal, on the securities are made monthly to holders of the security, in effect “passing through” monthly payments made by the individual borrowers on the mortgage loans that underlie the securities, net of fees paid to the issuer/guarantor and servicers of the securities. Whole pool pass-through certificates are mortgage pass-through certificates that represent the entire ownership of (as opposed to merely a partial undivided interest in) a pool of mortgage loans.

TBAs

In addition to investing in specific pools of Agency RMBS, we utilize forward-settling purchases and sales of Agency RMBS where the underlying pools of mortgage loans are TBAs. Pursuant to these TBA transactions, we agree to purchase or sell, for future delivery, Agency RMBS with certain principal and interest terms and certain types of underlying collateral, but the particular Agency RMBS to be delivered is not identified until shortly before the TBA settlement date. TBAs are liquid and have quoted market prices and represent the most actively traded class of MBS. We use TBAs primarily for hedging purposes. TBA trading is based on the assumption that mortgage pools that are eligible to be delivered at TBA settlement are fungible and thus the specific mortgage pools to be delivered do not need to be explicitly identified at the time a trade is initiated.

We primarily engage in TBA transactions for purposes of managing certain risks associated with our long Agency RMBS and, to a lesser extent, our non-Agency RMBS. The principal risks that we use TBAs to mitigate are interest rate and yield spread risks. For example, we may hedge the interest rate and/or yield spread risk inherent in our long Agency RMBS by taking short positions in TBAs that are similar in character. Alternatively, we may engage in TBA transactions because we find them attractive on their own, from a relative value perspective or otherwise.

Mortgage-Related Derivatives

We take long and short positions in various mortgage-related derivative instruments, including credit default swaps. A credit default swap is a credit derivative contract in which one party (the protection buyer) pays an ongoing periodic premium (and often an upfront payment as well) to another party (the protection seller) in return for compensation for default (or similar credit event) by a reference entity. In this case, the reference entity can be an individual MBS or an index of several MBS, such as an ABX, PrimeX or CMBX Index. Payments from the protection seller to the protection buyer typically occur if a credit event takes place; a credit event may be triggered by, among other things, the reference entity’s failure to pay its principal obligations or a severe ratings downgrade of the reference entity.

CMBS

CMBS are mortgage-backed securities collateralized by loans on commercial properties. The majority of CMBS issued are fixed rate securities backed by fixed rate loans made to multiple borrowers on a variety of property types, though single-borrower CMBS and floating-rate CMBS have also been issued.

The majority of CMBS utilize senior/subordinate structures, similar to those found in non-Agency RMBS. Subordination levels vary so as to provide for one or more AAA credit ratings on the most senior classes, with less senior securities rated investment grade and non-investment grade, including a first loss component which is typically unrated.

Commercial Mortgage Loans and Other Commercial Real Estate Debt

Commercial mortgage loans are loans secured by liens on commercial properties, including retail, office, industrial, hotel, and multifamily properties. Loans may be fixed or floating rate and will generally range from two to ten years. Commercial real estate debt typically limits the borrower’s right to freely prepay for a period of time through provisions such as prepayment fees, lockout, yield maintenance, or defeasance provisions.

First lien loans may be structured as whole loans, or alternatively bifurcated into a senior participation interest (“A-Note”) and a subordinated participation interest (“B-Note”). The rights of an A-Note or B-Note holder are typically governed by an intercreditor agreement which sets forth the respective rights and obligations of the holders, with the B-Note’s entitlement to principal and interest subordinated to that of the A-Note.

A subordinate loan may be structured simply as a second mortgage, or alternatively as a mezzanine loan, which is a loan secured by the pledge of the borrower’s ownership interests in the property, and therefore subordinate to any mortgage loan but senior to the borrower’s equity in the property. An intercreditor agreement typically governs the rights of a second mortgage or mezzanine loan relative to a first mortgage loan, with the second mortgage loan’s or mezzanine loan’s entitlement to interest and principal subordinated to that of the first mortgage loan.

Commercial real estate loans may also be structured into more complicated senior/subordinate structures, including those providing for multiple B-Note or multiple mezzanine loan senior/subordinate components. A loan or a component of a loan may have only one lender, or pari passu participation interests may be issued to multiple lenders. Loans are generally privately negotiated, and so structures can vary based on the specific facts and circumstances relating to the loan, property and borrower, among other things.

Commercial mortgage loans are sometimes made for the acquisition, renovation, or redevelopment of a property. These loans are typically shorter term loans, or “bridge loans.” We may also acquire non-performing commercial mortgage loans.

Corporate Debt and Equity Securities and Derivatives

For hedging purposes, we may take short positions in corporate debt and equity (including indices on corporate debt and equity) by entering into derivative contracts such as credit default swaps, total return swaps, and options. These are generally not hedges against risks that are directly related to specific corporate entities. Rather, these hedges reference corporations (such as financial institutions that have substantial mortgage-related exposure) or indices whose performance we believe may have a reasonable degree of correlation with the performance of our portfolio. Given this correlation, a short position with respect to such corporations or indices provides a hedge to our portfolio of MBS as a whole.

A credit default swap is a derivative contract in which one party (the protection buyer) pays an ongoing periodic premium (and often an upfront payment as well) to another party (the protection seller) in return for compensation upon the occurrence of a credit event with respect to the corporation or index referenced by such derivative contract. A credit event relating to a credit default swap on an individual corporation or an index of corporate names would typically be triggered by a corporation’s bankruptcy or failure to make scheduled payments in respect of debt obligations. A total return swap is a derivative whereby one party makes payments to the other representing the total return on a reference debt or equity security (or index of debt or equity securities) in exchange for an agreed upon ongoing periodic premium. An equity option is a derivative that gives the holder the option to buy or sell an equity security or index of securities at a predetermined price within a certain time period. The option may reference the equity of a publicly traded company or an equity index. In addition to general market risk, our derivatives on corporate debt and equity securities are subject to risks related to the underlying corporate entities.

Other Assets

We also may from time to time opportunistically acquire other mortgage-related and financial assets that may include, among others: residential whole mortgage loans, ABS backed by consumer and commercial assets, and real property.

As of December 31, 2012 , our derivatives portfolio consisted of the following:

(In thousands)

The table below shows the credit rating categories from Moody’s, Standard and Poor’s, or Fitch Rating Ltd., for our long investment portfolio as of December 31, 2012 , excluding IOs, POs, and other similar securities with an aggregate fair value of $10.1 million, but including our long investments that were unrated but affiliated with Fannie Mae, Freddie Mac, or Ginnie Mae, including TBAs. Ratings tend to be a lagging credit indicator; as a result, the credit quality of our long investment holdings may be lower than the credit quality implied based on the ratings listed below. In situations where an investment has a split rating, the lowest provided rating is used.

(In thousands)

Investment Process

Our investment process benefits from the resources and professionals of our Manager and Ellington. The process is managed by an investment and risk management committee, which includes the following three officers of our Manager: Messrs. Vranos, Penn, and Tecotzky. These officers of our Manager also serve as our Co-Chief Investment Officer; Chief Executive Officer; and Co-Chief Investment Officer, respectively. The investment and risk management committee operates under investment guidelines and meets periodically to develop a set of preferences for the composition of our portfolio. The primary focus of the investment and risk management committee, as it relates to us, is to review and approve our investment policies and our portfolio holdings and related compliance with our investment policies and guidelines. The investment and risk management committee has authority delegated by our Board of Directors to authorize transactions consistent with our investment guidelines. Any transactions deviating in a material way from these guidelines must be approved by our Board of Directors.

Ellington has a focused investment team for each of our targeted asset classes. Each team evaluates acquisition opportunities consistent with the guidelines developed and maintained by our Manager’s investment and risk management committee. Our asset acquisition process includes sourcing and screening of asset acquisition opportunities, credit analysis, due diligence, structuring, financing, and hedging, each as appropriate, to seek attractive total returns commensurate with our risk tolerance. We also screen and monitor all potential assets to determine their impact on maintaining our exclusion from regulation as an investment company under the Investment Company Act and our qualification as a partnership for U.S. federal income tax purposes.

Risk Management

Risk management is a cornerstone of Ellington’s portfolio management process. Ellington’s risk management infrastructure system includes “ELLiN,” a proprietary portfolio management system that Ellington uses for all of its accounts, which provides real time and batch reporting to all departments at Ellington, including trading, research, risk management, finance, operations, accounting, and compliance. We benefit from Ellington’s comprehensive risk management infrastructure and ongoing assessment of both portfolio and operational risks. In addition, we utilize derivatives and other hedging instruments to opportunistically hedge our credit and interest rate risk.

Credit Risk Hedging

We enter into short positions using credit default swaps to protect against adverse credit events with respect to our non-Agency MBS. We may use credit default swaps to hedge non-Agency MBS credit risk by buying protection on a single non-Agency MBS or by buying protection on a basket of non-Agency MBS assets. We may also enter into credit default swaps on the ABX, PrimeX, or CMBX indices. We also enter into derivative contracts for hedging purposes referencing the unsecured corporate credit, or the equity of, certain corporations.

Interest Rate Hedging

We opportunistically hedge our interest rate risk by using various hedging strategies to mitigate such risks. The interest rate hedging instruments that we use and may use in the future include, without limitation:

In particular, from time to time we enter into short positions in interest rate swaps to offset the potential adverse effects that changes in interest rates will have on the value of certain of our assets and our financing costs. An interest rate swap is an agreement to exchange interest rate cash flows, calculated on a notional principal amount, at specified payment dates during the life of the agreement. Typically one party pays a fixed interest rate and receives a floating interest rate and the other party pays a floating interest rate and receives a fixed interest rate. Each party’s payment obligation is computed using a different interest rate. In an interest rate swap, the notional principal is never exchanged.

Liquidity Management

As part of the risk management and liquidity management functions that our Manager performs for us, our Manager computes a “cash buffer” which at any given point in time represents the amount of our free cash in excess of what our Manager estimates would conservatively be required, especially in times of market dislocation, to support our particular assets and liabilities at such time. Thus, rather than focusing solely on our leverage, our Manager typically seeks to maintain a positive cash buffer. However, our Manager is not required to maintain a positive cash buffer and may choose not to maintain a positive cash buffer at certain times, for example if it believes there are compelling market opportunities to pursue.

Our Financing Strategies and Use of Leverage

We finance our assets with what we believe to be a prudent amount of leverage, the level of which varies from time to time based upon the particular characteristics of our portfolio, availability of financing and market conditions. As of December 31, 2012 , our debt financings consisted almost exclusively of reverse repurchase agreements, or “reverse repos.” Currently, the majority of our reverse repos are collateralized by Agency RMBS; however, we also have reverse repo borrowings that are collateralized by non-Agency holdings, including U.S. Treasury Securities. In a reverse repo, we sell an asset to a counterparty at a discounted value, or the loan amount, and simultaneously agree to repurchase the same asset from such counterparty at a specified later date at a price equal to the loan amount plus an interest factor. Despite being legally structured as sales and subsequent repurchases, reverse repos are generally accounted for as debt secured by the underlying assets. During the term of a reverse repo, we generally receive the income and other payments distributed with respect to the underlying assets, and pay interest to the counterparty. While the proceeds of our reverse repo financings are often used to purchase the assets subject to the transaction, our financing arrangements do not restrict our ability to use proceeds from these arrangements to support our other liquidity needs. Our reverse repo arrangements are typically documented under the Securities Industry and Financial Markets Association’s, or “SIFMA’s,” standard form Master Repurchase Agreement, with the ability for both parties to demand margin (i.e., to demand that the other party post additional collateral or repay a portion of the funds advanced) should the value of the underlying assets and posted collateral change. Given daily market volatility, we and our repo counterparties are required to post additional margin collateral to each other from time to time as part of the normal course of our business. Our reverse repo financing counterparties generally have the right, to varying degrees, to determine the value of the underlying collateral for margining purposes, subject to the terms and conditions of our agreement with the counterparty. As of December 31, 2012 , we had approximately $905.7 million outstanding on reverse repos with ten counterparties. We also had financing through a small resecuritization transaction where the outstanding borrowing was $1.3 million at December 31, 2012. These borrowings were the only debt financings we had outstanding as of December 31, 2012 , and, given that we had approximately $506.4 million of shareholders’ equity as of December 31, 2012 , our debt-to-equity ratio was 1.79 to 1. Our debt-to-equity ratio does not account for liabilities other than debt financings.

We may utilize other types of borrowings in the future, including term facilities or other more complex financing structures. We may also take advantage of available borrowings, if any, under financing programs established from time to time by the Federal Government. We also may raise capital by issuing debt securities, preferred or common shares, warrants, or other securities.

Our use of leverage, especially in order to increase the amount of assets supported by our capital base, may have the effect of increasing losses when these assets underperform. Our investment policies require no minimum or maximum leverage and our Manager’s investment and risk management committee will have the discretion, without the need for further approval by our Board of Directors, to change both our overall leverage and the leverage used for individual asset classes. Because our strategy is flexible, dynamic, and opportunistic, our overall leverage will vary over time. As a result, we do not have a targeted debt-to-equity ratio.

Management Agreement

We entered into a management agreement with our Manager upon our inception in August 2007, pursuant to which our Manager provides for the day-to-day management of our operations.

The management agreement, which was most recently amended and restated effective January 1, 2013, requires our Manager to manage our assets, operations, and affairs in conformity with the policies and the investment guidelines that are approved and monitored by our Board of Directors. Our Manager is under the supervision and direction of our Board of Directors. Our Manager is responsible for:

Our Manager is responsible for our day-to-day operations and performs (or causes to be performed) such services and activities relating to the management, operation, and administration of our assets and liabilities, and business as may be appropriate.

Under the management agreement, we pay our Manager a management fee quarterly in arrears, which includes a “base” component and an “incentive” component, and we reimburse certain expenses of our Manager. Effective January 1, 2013, we entered into a Fourth Amended and Restated Management Agreement with our Manager, which replaces and supersedes the Third Amended and Restated Management Agreement dated August 2, 2011. The Fourth Amended and Restated Management Agreement was adopted and executed for the primary purpose of making our operating partnership subsidiary a party to the management agreement and to cause, effective for all fiscal quarters beginning on or after January 1, 2013, base management fees and incentive fees to be calculated at the Operating Partnership level (as opposed to at the Company level).

Although we have not done so to date, if we invest at issuance in the equity of any CDO that is managed, structured, or originated by Ellington or one of its affiliates, or if we invest in any other investment fund or other investment for which Ellington or one of its affiliates receives management, origination or structuring fees, the base management and incentive fees payable by us to our Manager will be reduced by (or our Manager will otherwise rebate to us) an amount equal to the applicable portion of any such related management, origination, or structuring fees.

The management agreement provides that 10% of each incentive fee payable to our Manager is to be paid in common shares, with the balance paid in cash; provided, however, that our Manager may, in its sole discretion, elect to receive a greater percentage of any incentive fee in the form of common shares by providing our Board of Directors with written notice of its election to receive a greater percentage of its incentive fee in common shares before the first day of the last calendar month in the quarter to which such incentive fee relates. Our management agreement further provides that our Manager may not elect to receive common shares as payment of its incentive fee, other than in accordance with all applicable securities exchange rules and securities laws (including prohibitions on insider trading). The number of our common shares to be received by our Manager is based on the fair market price of those common shares, which is determined based on the average of the closing prices of our common shares on the NYSE during the last calendar month of the quarter to which such incentive fee relates. Common shares delivered as payment of the incentive fee are immediately vested, provided that our Manager has agreed not to sell such common shares prior to one year after the date they are issued to our Manager, provided further, however, that this transfer restriction will lapse if the management agreement is terminated.

Base Management Fees, Incentive Fees and Reimbursement of Expenses

Base Management Fees

Periods prior to January 1, 2013 — Under the previous management agreement, we paid our Manager a base management fee quarterly in arrears in an amount equal to 1.50% per annum of our shareholders’ equity (calculated in accordance with U.S Generally Accepted Accounting Principles, or “U.S. GAAP,” as of the end of each fiscal quarter (before deductions for base management fees and incentive fees payable with respect to such fiscal quarter), provided that shareholders’ equity is adjusted to exclude one-time events pursuant to changes in U.S. GAAP, as well as non-cash charges after discussion between our Manager and our independent directors, and approval by a majority of our independent directors in the case of non-cash charges.

Periods after January 1, 2013 — Under the current management agreement, the Operating Partnership pays our Manager the same base management fee described above for the periods prior to January 1, 2013, except that shareholder’s equity is defined as the members’ equity of the Operating Partnership.

Incentive Fees

Periods prior to January 1, 2013 — In addition to the base management fee, with respect to each fiscal quarter we paid our Manager an incentive fee equal to the excess, if any, of (i) the product of (A) 25% and (B) the excess of (1) our Adjusted Net Income (described below) for the Incentive Calculation Period (which means such fiscal quarter and the immediately preceding three fiscal quarters) over (2) the sum of the Hurdle Amounts (described below) for the Incentive Calculation Period, over (ii) the sum of the incentive fees already paid or payable for each fiscal quarter in the Incentive Calculation Period preceding such fiscal quarter.

For purposes of calculating the incentive fee, “Adjusted Net Income” for the Incentive Calculation Period means our net increase in shareholders’ equity from operations (or such equivalent U.S. GAAP measure based on the basis of presentation of our consolidated financial statements), after all base management fees but before any incentive fees for such period, and excluding any non-cash equity compensation expenses for such period, as reduced by any Loss Carryforward (as described below) as of the end of the fiscal quarter preceding the Incentive Calculation Period. Adjusted Net Income will be adjusted to exclude one-time events pursuant to changes in U.S. GAAP, as well as non-cash charges after discussion between our Manager and our independent directors and approval by a majority of our independent directors in the case of non-cash charges. For the avoidance of doubt, Adjusted Net Income includes both net investment income and net realized and unrealized gains and losses.

For purposes of calculating the incentive fee, the “Loss Carryforward” as of the end of any fiscal quarter was calculated by determining the excess, if any, of (1) the Loss Carryforward as of the end of the immediately preceding fiscal quarter over (2) our net increase in shareholders’ equity from operations (expressed as a positive number) or net decrease in shareholders’ equity from operations (expressed as a negative number) for such fiscal quarter (or such equivalent U.S. GAAP measures as may be appropriate depending on the basis of presentation of our consolidated financial statements), as the case may be, calculated in accordance with U.S. GAAP, adjusted to exclude one-time events pursuant to changes in U.S. GAAP, as well as non-cash charges after discussion between our Manager and our independent directors and approval by a majority of our independent directors in the case of non-cash charges.

For purposes of calculating the incentive fee, the “Hurdle Amount” meant, with respect to any fiscal quarter, the product of (i) one-fourth of the greater of (A) 9% and (B) 3% plus the ten-year Treasury rate for such fiscal quarter, (ii) the sum of (A) the weighted average gross proceeds per share of all our common share issuances (excluding issuances of our common shares (a) as equity incentive awards, (b) to our Manager as part of its base management fee or incentive fee and (c) to our Manager or any of its affiliates in privately negotiated transactions) up to the end of such fiscal quarter (with each such issuance weighted by both the number of shares issued in such issuance and the number of days that such issued shares were outstanding during such fiscal quarter) and (B) the result obtained by dividing (I) retained earnings attributable to our common shares at the beginning of such fiscal quarter by (II) the average number of our common shares outstanding for each day during such fiscal quarter, and (iii) the average number of our common shares and Long-Term Incentive Plan Units, “LTIP Units,” outstanding for each day during such fiscal quarter.

Periods after January 1, 2013 — Under the current management agreement, our Operating Partnership pays our Manager the same incentive fee described immediately above, except that:

Reimbursement of Expenses

We do not maintain an office or employ personnel. We rely on the facilities and resources of our Manager to conduct our operations. We pay all of our direct operating expenses, except those specifically required to be borne by our Manager under the management agreement. Our Manager is responsible for all costs incident to the performance of its duties under the management agreement, including compensation of our Manager’s employees and other related expenses, other than the costs incurred by our Manager for a dedicated Chief Financial Officer, dedicated controller, an in-house legal counsel, and certain internal audit staff in connection with Sarbanes-Oxley compliance initiatives as approved by the Board of Directors (provided that the costs for any time spent by such in-house legal counsel or internal audit staff on matters unrelated to the Company will not be borne by the Company). In addition, other than as expressly described in the management agreement, we are not required to pay any portion of rent, telephone, utilities, office furniture, equipment, machinery, and other office, internal and overhead expenses of our Manager and its affiliates. Expense reimbursements to our Manager are made within 60 days following delivery of the expense statement by our Manager.

Term and Termination

The management agreement has a current term that expires on December 31, 2013, and will automatically renew for a one year term each anniversary date thereafter unless notice of non-renewal is delivered by either party to the other party at least 180 days prior to the expiration of the then current term. Our independent directors will review our Manager’s performance annually and the management agreement may be terminated annually upon the affirmative vote of at least two-thirds of our independent directors, or by the affirmative vote of the holders of at least a majority of the outstanding common shares, based upon unsatisfactory performance that is materially detrimental to us or a determination by our independent directors that the base management and incentive fees payable to our Manager are not fair, subject to our Manager’s right to prevent such a compensation termination by accepting a mutually acceptable reduction of management fees. In the event we terminate the management agreement without cause or elect not to renew the management agreement, we will be required to pay our Manager a termination fee equal to the amount of three times the sum of (i) the average annual base management fee earned by our Manager during the 24-month period immediately preceding the date of termination, calculated as of the end of the most recently completed fiscal quarter prior to the date of termination and (ii) the average annual incentive fee earned by our Manager during the 24-month period immediately preceding the date of termination, calculated as of the end of the most recently completed fiscal quarter prior to the date of termination.

We may also terminate the management agreement without payment of the termination fee with 30 days prior written notice from our Board of Directors for cause, which is defined as:

termination of employment with or without cause or for any other reason.

Our Manager may terminate the management agreement effective upon 60 days prior written notice of termination to us in the event that we default in the performance or observance of any material term, condition or covenant in the management agreement and the default continues for a period of 30 days after written notice to us specifying the default and requesting that the default be remedied in such 30-day period. In the event our Manager terminates the management agreement due to our default in the performance or observance of any material term, condition or covenant in the management agreement, we will be required to pay our Manager the termination fee. Our Manager may also terminate the management agreement in the event we become regulated as an investment company under the Investment Company Act, with such termination deemed to occur immediately prior to such event; provided, however, that in the case of such termination, if our Manager was not at fault for our becoming regulated as an investment company under the Investment Company Act, we will be required to pay a termination fee.

Conflicts of Interest; Equitable Allocation of Opportunities

Ellington manages, and expects to continue to manage, other funds, accounts, and vehicles that have strategies that are similar to, or that overlap with, our strategy. As of December 31, 2012 , Ellington managed various funds, accounts, and other vehicles that have strategies that are similar to, or that overlap with, our strategy, that have assets under management of approximately $4.4 billion (excluding our assets but including $1.1 billion of accounts with more traditional mandates). Ellington makes available to our Manager all opportunities to acquire assets that it determines, in its reasonable and good faith judgment, based on our objectives, policies and strategies, and other relevant factors, are appropriate for us in accordance with Ellington’s written investment allocation policy, it being understood that we might not participate in each such opportunity, but will on an overall basis equitably participate with Ellington’s other accounts in all such opportunities. Ellington’s investment and risk management committee and its compliance committee (headed by its Chief Compliance Officer) are responsible for monitoring the administration of, and facilitating compliance with, Ellington’s investment allocation procedures and policies.

Because many of our targeted assets are typically available only in specified quantities and because many of our targeted assets are also targeted assets for other Ellington accounts, Ellington often is not able to buy as much of any given asset as required to satisfy the needs of all its accounts. In these cases, Ellington’s investment allocation procedures and policies typically allocate such assets to multiple accounts in proportion to their needs and available capital. Ellington may at times allocate opportunities on a preferential basis to accounts that are in a “start-up” or “ramp-up” phase. The policies permit departure from such proportional allocation under certain circumstances, for example when such allocation would result in an inefficiently small amount of the security being purchased for an account. In that case, the policy allows for a protocol of allocating assets so that, on an overall basis, each account is treated equitably.

Other policies of Ellington that our Manager applies to the management of our company include controls for:

its affiliates, or if we invest in any other investment fund or other investment for which Ellington or one of its affiliates receives management, origination or structuring fees, the base management and incentive fees payable by us to our Manager will be reduced by an amount equal to the applicable portion (as described in the management agreement) of any such management, origination or structuring fees.

To date, we have not entered into any cross transactions with other Ellington-managed accounts or principal transactions with Ellington, or invested in other Ellington accounts.

Our Manager is authorized to follow very broad investment guidelines. Our independent directors will periodically review our investment guidelines and our portfolio. However, our independent directors generally will not review our proposed asset acquisitions, dispositions or other management decisions. In addition, in conducting periodic reviews, the independent directors will rely primarily on information provided to them by our Manager. Furthermore, our Manager may arrange for us to use complex strategies or to enter into complex transactions that may be difficult or impossible to unwind by the time they are reviewed by our Board of Directors. Our Manager has great latitude within our broad investment guidelines to determine the types of assets it may decide are proper for purchase by us. The management agreement with our Manager does not restrict the ability of its officers and employees from engaging in other business ventures of any nature, whether or not such ventures are competitive with our business. We may acquire assets from entities affiliated with our Manager, even where the assets were originated by such entities. Affiliates of our Manager may also provide services to entities in which we have invested.

Our executive officers and the officers and employees of our Manager are also officers and employees of Ellington, and, with the exception of those officers that are dedicated to us, we compete with other Ellington accounts for access to these individuals. We have not adopted a policy that expressly prohibits our directors, officers, security holders or affiliates from having a direct or indirect pecuniary interest in any asset to be acquired or disposed of by us or any of our subsidiaries or in any transaction to which we or any of our subsidiaries is a party or has an interest, nor do we have a policy that expressly prohibits any such persons from engaging for their own account in business activities of the types conducted by us. However, our code of business conduct and ethics contains a conflicts of interest policy that prohibits our directors, officers and employees, as well as employees of our Manager who provide services to us, from engaging in any transaction that involves an actual or apparent conflict of interest with us, absent approval by the Board of Directors or except as expressly set forth above or as provided in the management agreement between us and our Manager. In addition, nothing in the management agreement binds or restricts our Manager or any of its affiliates, officers or employees from buying, selling or trading any securities or commodities for their own accounts or for the accounts of others for whom our Manager or any of its affiliates, officers or employees may be acting.

Competition

In acquiring our assets, we compete with mortgage REITs, specialty finance companies, savings and loan associations, banks, mortgage bankers, insurance companies, mutual funds, institutional investors, investment banking firms, financial institutions, governmental bodies, and other entities. Many of our competitors are significantly larger than us, have greater access to capital and other resources and may have other advantages over us. In addition to existing companies, other companies may be organized for similar purposes, including companies focused on purchasing mortgage assets. A proliferation of such companies may increase the competition for equity capital and thereby adversely affect the market price of our common shares. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of assets and establish more relationships than us.

In the face of this competition, we have access to our Manager’s and Ellington’s professionals and their industry expertise, which may provide us with a competitive advantage and help us assess risks and determine appropriate pricing for certain potential assets. In addition, we believe that these relationships enable us to compete more effectively for attractive asset acquisition opportunities. However, we may not be able to achieve our business goals or expectations due to the competitive risks that we face.

Operating and Regulatory Structure

Tax Requirements

We believe that we have been organized and have operated so that we have qualified, and will continue to qualify, to be treated for U.S. federal income tax purposes as a partnership and not as an association or a publicly traded partnership taxable as a corporation. In general, an entity that is treated as a partnership for U.S. federal income tax purposes is not subject to U.S. federal income tax at the entity level. Consequently, holders of our common shares will be required to take into account their

allocable share of items of our income, gain, loss, deduction and credit for our taxable year ending within or with their taxable year, regardless of whether we make cash distributions on a current basis with which to pay any resulting tax.

We believe that we are treated, and will continue to be treated, as a publicly traded partnership. Publicly traded partnerships are generally treated as partnerships for U.S. federal income tax purposes as long as they satisfy certain income and other tests on an ongoing basis. We believe that we have satisfied and will continue to satisfy those requirements and that we have been and will continue to be treated as a partnership for U.S. federal income tax purposes.

Investment Company Act Exclusions

Most of our business is conducted through various wholly-owned and majority-owned subsidiaries in a manner such that neither we nor our subsidiaries are subject to regulation under the Investment Company Act. Under Section 3(a)(1) of the Investment Company Act, a company is deemed to be an “investment company” if:

We believe we and our Operating Partnership, will not be considered investment companies under Section 3(a)(1)(A) of the Investment Company Act because we do not engage primarily or hold ourselves out as being engaged primarily in the business of investing, reinvesting or trading in securities. Rather, through wholly-owned or majority-owned subsidiaries, we are primarily engaged in the non-investment company businesses of these subsidiaries.

The 40% Test limits the types of businesses in which we may engage either directly or through our subsidiaries. EF Mortgage LLC, a wholly-owned subsidiary of our Operating Partnership, relies on the exclusion provided by Section 3(c)(5)(C) under the Investment Company Act. EF Mortgage LLC, in turn, has a wholly-owned subsidiary, EF CMO LLC, which invests in mortgage-related securities and relies on Section 3(c)(7) of the Investment Company Act. EF Mortgage LLC treats its investment in EF CMO LLC as a real estate-related asset for purposes of its own exclusion under Section 3(c)(5)(C). EF Securities LLC, another wholly-owned subsidiary of our Operating Partnership, owns securities, including various kinds of mortgage-related securities and relies on the exemption provided by Section 3(c)(7) of the Investment Company Act; therefore, we treat securities that we own and that were issued by EF Securities LLC as “investment securities” and are required to keep the value of these securities, together with any other investment securities we own, below 40% of our total assets (excluding U.S. Government securities and cash) on an unconsolidated basis. Any subsidiaries we may form in the future may not be majority-owned or wholly-owned by us or our operating partnership or might rely on the exemption provided by Section 3(c)(1) or 3(c)(7) of the Investment Company Act, in which case we would treat securities that we own and that were issued by these types of subsidiaries as “investment securities” and be required to keep the value of these securities, together with the value of the investment in EF Securities LLC and any other investment securities we own, below 40% of our total assets (excluding U.S. Government securities and cash) on an unconsolidated basis. Section 3(c)(5)(C), the Investment Company Act exclusion upon which EF Mortgage LLC relies, is designed for entities “primarily engaged in the business of purchasing or otherwise acquiring mortgages and other liens on and interests in real estate.” This exclusion generally requires that at least 55% of the entity’s assets consist of qualifying real estate assets and at least 80% of the entity’s assets consist of either qualifying real estate assets or real estate-related assets. Qualifying real estate assets for this purpose include mortgage loans, whole pool Agency pass-through certificates and other assets that the SEC staff has determined in various no-action letters are the functional equivalent of mortgage loans for the purposes of the Investment Company Act. We intend to treat as real estate-related assets RMBS that do not satisfy the conditions set forth in those SEC staff no-action letters. In classifying the assets held by EF Mortgage LLC as qualifying real estate assets or real estate-related assets, we also will rely on any other guidance published by the SEC staff or on our analyses (in consultation with outside counsel) of guidance published with respect to other types of assets to determine which assets are qualifying real estate assets and real estate-related assets.

Both the 40% Test and the requirements of the Section 3(c)(5)(C) exclusion limit the types of businesses in which we may engage and the types of assets we may hold, as well as the timing of sales and purchases of assets.

On August 31, 2011, the SEC published a concept release entitled “Companies Engaged in the Business of Acquiring Mortgages and Mortgage Related Instruments” (Investment Company Act Rel. No. 29778). This release notes that the SEC is reviewing the 3(c)(5)(C) exemption relied upon by companies similar to us that invest in mortgage loans and mortgage-backed

securities. There can be no assurance that the laws and regulations governing the Investment Company Act status of companies similar to ours, or the guidance from the Division of Investment Management of the SEC regarding the treatment of assets as qualifying real estate assets or real estate-related assets, will not change in a manner that adversely affects our operations as a result of this review. To the extent that the SEC staff provides more specific guidance regarding any of the matters bearing upon our exclusion from the need to register under the Investment Company Act, we may be required to adjust our strategy accordingly. Any additional guidance from the SEC staff could provide additional flexibility to us, or it could further inhibit our ability to pursue the strategies that we have chosen. Furthermore, although we intend to monitor the assets of EF Mortgage LLC regularly, there can be no assurance that EF Mortgage LLC will be able to maintain this exclusion from registration. In that case, our investment in EF Mortgage LLC would be classified as an investment security, and we might not be able to maintain our overall exclusion from registering as an investment company under the Investment Company Act.

If we or our subsidiaries were required to register as an investment company under the Investment Company Act, we would become subject to substantial regulation with respect to our capital structure (including our ability to use leverage), management, operations, transactions with affiliated persons (as defined in the Investment Company Act), and portfolio composition, including restrictions with respect to diversification and industry concentration and other matters. Compliance with the restrictions imposed by the Investment Company Act would require us to make material changes to our strategy which could materially adversely affect our business, financial condition and results of operations and our ability to make distributions to our shareholders. Accordingly, to avoid that result, we may be required to adjust our strategy, which could limit our ability to make certain investments or require us to sell assets in a manner, at a price or at a time that we otherwise would not have chosen. This could negatively affect the value of our common shares, the sustainability of our business model and our ability to make distributions. See “Risk Factors-Maintenance of our exclusion from registration under the Investment Company Act imposes significant limitations on our operations.”

Investment Advisers Act of 1940

Both Ellington and our Manager are registered as investment advisers under the Investment Advisers Act of 1940 and are subject to the regulatory oversight of the Investment Management Division of the SEC.

Staffing

All of our executive officers, including our dedicated Chief Financial Officer and controller, and our partially dedicated in-house legal counsel and internal audit staff are employees of Ellington or one or more of its affiliates. See “-Management Agreement” above.

Additional Information

A copy of this Annual Report on Form 10-K, as well as our Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and any amendments to such reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available, free of charge, on our internet website at www.ellingtonfinancial.com . All of these reports are made available on our internet website as soon as reasonably practicable after they are electronically filed with or furnished to the SEC. Our Corporate Governance Guidelines and Code of Business Conduct and Ethics and the charters of the Audit, Compensation and Nominating and Corporate Governance Committees of our Board of Directors are also available at www.ellingtonfinancial.com and are available in print to any shareholder upon request in writing to Ellington Financial LLC, c/o Investor Relations, 53 Forest Avenue, Old Greenwich, CT 06870. The information on our website is not, and shall not be deemed to be, a part of this report or incorporated into any other filing we make with the SEC.

All reports filed with the SEC may also be read and copied at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. Further information regarding the operation of the public reference room may be obtained by calling 1-800-SEC-0330. In addition, all of our reports filed with or furnished to the SEC can be obtained at the SEC’s website at www.sec.gov .