Exhibit 99.1

Cypress Sharpridge Investments, Inc. Announces Fourth Quarter 2010 Financial Results

For Immediate Release

NEW YORK, NY – February 2, 2011 – Cypress Sharpridge Investments, Inc. (NYSE: CYS) (“CYS” or the “Company”) today announced financial results for the quarter and year ended December 31, 2010.

Fourth Quarter 2010 Highlights

Public Offering

On December 15, 2010, the Company successfully completed a public offering of 13,972,500 shares of common stock, raising approximately $166.9 million of net proceeds, bringing the total number of shares of common stock outstanding to 59,550,836 at December 31, 2010. As part of the Company’s plan to invest the net proceeds of the offering, the Company entered into several forward settling purchases. In addition to forward settling purchases made in connection with the December 15, 2010 offering, as of December 31, 2010, the Company also had forward settling purchases, which had not yet settled, in connection with the September 24, 2010 public offering and forward settling purchases made in the ordinary course of business. As of December 31, 2010, the Company had the following forward settling purchases:

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Fourth Quarter 2010 Results

The Company had net loss of $17.3 million during the fourth quarter of 2010, or $0.38 per diluted share, compared to net income of $1.9 million, or $0.05 per diluted share, in the third quarter of 2010. During the fourth quarter of 2010, the Company had Core Earnings of $12.4 million, or $0.25 per diluted share, compared to $7.7 million, or $0.24 per diluted share, in the third quarter of 2010. Core Earnings represents a non-GAAP financial measure and is defined as net income (loss) excluding (i) net realized gain (loss) on investments and termination of swap contracts and (ii) net unrealized appreciation (depreciation) on investments and swap and cap contracts. The quarter-over-quarter increase in Core Earnings was generally the result of the increase in net interest income due to the increase in net assets. However, the increase in net interest income was partially offset by the reduction in our net interest margin. For the fourth quarter of 2010, our net interest margin decreased to 1.74% from 1.91% for the third quarter of 2010. During the fourth quarter of 2010, we had $2,970.2 million of average Agency RMBS compared to $1,736.6 million during the third quarter of 2010.

During the third and fourth quarters of 2010, the Company utilized forward settling purchases to deploy the majority of the proceeds from its September and December 2010 public offerings. The benefit of purchasing assets in forward settling transactions is that the Company can obtain an asset at a discount (also referred to as “drop”) to its current market value; however, the Company does not receive any interest income on the asset until the forward transaction settles. Obtaining the asset at a discount to market value reduces the impact of prepayments and is accretive to net asset value.

Drop income is a component of our net income accounted for as net gain (loss) from investments on our statement of operations and therefore excluded from our Core Earnings. During the fourth quarter of 2010, the Company generated drop income of approximately $16.9 million, or $0.36 per diluted share, compared to approximately $11.3 million, or $0.38 per diluted share, during the third quarter of 2010. During the fourth quarter of 2010, the Company made forward purchases of approximately $2.7 billion of Agency RMBS with a weighted average drop of approximately $0.28 per $100.00 par value per month compared to approximately $2.6 billion of Agency RMBS with a weighted average drop of approximately $0.24 per $100.00 par value per month during the third quarter of 2010.

The Company’s interest rate spread net of hedge decreased to 1.74% for the fourth quarter of 2010 from 1.91% in the third quarter of 2010. This decrease is primarily due to the impact of hedging the forward settling purchases. During the fourth quarter of 2010, the average cost basis of the Company’s settled Agency RMBS was $2,970.2 million, average unsettled Agency RMBS was $2,180.3 million and average total Agency RMBS was $5,150.5 million. By applying total net swap and cap interest expense of $7.3 million for the fourth quarter of 2010 pro rata over settled and unsettled Agency RMBS positions, swap and cap interest expense was $4.2 million relating to our settled Agency RMBS. The result is an adjusted interest rate spread net of hedge of approximately 2.24% compared to 2.55% in the third quarter of 2010. We believe that this spread is generally more reflective of the economic return of our assets as well as what we expect our interest rate spread net of hedge to be once the forward purchases settle.

The Company received $1.7 million of distributions from CLOs during the fourth quarter of 2010, of which $0.9 million were accounted for as a reduction of their cost basis and thereby excluded from our interest income and Core Earnings. This compared to distributions of $1.4 million from CLOs during the third quarter of 2010, of which $0.8 million were accounted for as a reduction of their cost basis.

The Company’s net asset value per share on December 31, 2010 was $11.59 after declaring a $0.60 dividend per share on December 3, 2010 and recognizing the accretive impact of the December public offering, compared with $12.53 at September 30, 2010. The decrease was primarily the result of the net unrealized depreciation on investments of $71.8 million during the fourth quarter of 2010.

The Company’s operating expenses as a percentage of net assets were 2.28% for the fourth quarter of 2010, compared to 2.64% for the third quarter of 2010. This decrease was primarily the result of the impact of the increase in net assets. During the fourth quarter of 2010, average net assets were $597.4 million compared to $409.0 million for the third quarter of 2010.

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Prepayments

The portfolio recorded $162.5 million in scheduled and unscheduled principal repayments and prepayments, which equated to a constant prepayment rate (“CPR”) of approximately 21.7%, and net amortization of premium (including paydown losses) of $4.5 million for the fourth quarter of 2010. This compared to $114.9 million in scheduled and unscheduled principal repayments and prepayments, which equated to a CPR of approximately 26.5% and net amortization of premium (including paydown losses) of $2.0 million for the third quarter of 2010.

Dividend

The Company declared a common dividend of $0.60 per share with respect to the fourth quarter of 2010, the same as the $0.60 per share for the third quarter of 2010. Using the closing share price of $12.91 on December 31, 2010, the fourth quarter dividend equates to an annualized dividend yield of 18.6%.

Portfolio

At December 31, 2010, the Company’s $6.3 billion portfolio of Agency RMBS was backed by fixed-rate mortgages and hybrid adjustable-rate mortgages (“ARMs”) with 0 to 84 months to reset (“Hybrid ARMs”). Additional information about our Agency RMBS portfolio at December 31, 2010 is summarized below:

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Financing, Leverage & Liquidity

At December 31, 2010, the Company had financed its portfolio with approximately $3.4 billion of borrowings under repurchase agreements with a weighted average interest rate of 0.32% and a weighted average maturity of approximately 39.3 days. In addition, the Company had payable for securities purchased of $2,234.4 million. The Company’s leverage ratio at December 31, 2010 was 8.3 to 1. At December 31, 2010, the Company’s liquidity position was approximately $423.4 million, consisting of unpledged Agency RMBS, U.S. Treasury securities and cash and cash equivalents. Below is a list of outstanding repurchase agreements at December 31, 2010.

Hedging

The Company utilizes interest rate swap and cap contracts to hedge the interest rate risk associated with the financed portion of its Agency RMBS portfolio. As of December 31, 2010, the Company had entered into 12 interest rate swap contracts with an aggregate notional amount of $3.7 billion, a weighted average fixed rate of 1.354% and a weighted average expiration of 3.1 years. At December 31, 2010, the Company had entered into three interest rate cap contracts with a notional amount of $0.7 billion, a weighted average cap rate of 1.593% and a weighted average expiration of 4.6 years. These interest rate swap and cap contracts are described below:

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Twelve Months Results

The Company had net income of $22.4 million during the year ended December 31, 2010, or $0.73 per diluted share, compared to $63.8 million, or $4.75 per diluted share, in 2009. During the year ended December 31, 2010, the Company had Core Earnings of $41.5 million, or $1.40 per diluted share, compared to $26.4 million, or $1.96 per diluted share, in 2009. The year-over-year decrease in Core Earnings per diluted share was primarily due to the decrease in interest rate spread net of hedge caused by lower yields on Agency RMBS and the impact of hedging the forward settling purchases described in “Fourth Quarter 2010 Results” above. During the year ended December 31, 2010, we had an interest rate spread net of hedge of 2.15% compared to 3.01% in 2009.

Conference Call

The Company will host a conference call at 9:00 AM Eastern Time on Thursday, February 3, 2011, to discuss its financial results for the quarter ended December 31, 2010. To participate in the event by telephone, please dial 866.730.5771 at least 10 minutes prior to the start time and reference the conference passcode 88728064. International callers should dial 857.350.1595 and reference the same passcode. The conference call will also be webcast live over the Internet and can be accessed at the Company’s Web site at www.cysinv.com. To listen to the live webcast, please visit www.cysinv.com at least 15 minutes prior to the start of the call to register, download, and install necessary audio software. A dial-in replay will be available on Thursday, February 3, 2011, at approximately 12:00 PM Eastern Time through Thursday, February 17, 2011, at approximately 11:00 AM Eastern Time. To access this replay, please dial 888.286.8010 and enter the conference ID number 96823221. International callers should dial 617.801.6888 and enter the same conference ID number. A replay of the conference call will also be archived on the Company’s website at www.cysinv.com.

About Cypress Sharpridge Investments, Inc.

Cypress Sharpridge Investments, Inc. is a specialty finance company that invests on a leveraged basis in residential mortgage pass-through certificates for which the principal and interest payments are guaranteed by Fannie Mae, Freddie Mac or Ginnie Mae. The Company refers to these securities as Agency RMBS. Cypress Sharpridge Investments, Inc. has elected to be taxed as a real estate investment trust for federal income tax purposes.

Forward Looking Statements Disclaimer

This press release contains statements that are “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, made pursuant to the safe harbor provisions of the Private Securities Reform Act of 1995. These forward-looking statements relate to our interest rate spread, net of hedge. 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, including those described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2009, and our Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2010, each of which has been filed with the Securities and Exchange Commission. If a change occurs, these forward-looking statements may vary materially from those expressed in this release. All forward-looking statements speak only as of the date on which they are made. 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.

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CYPRESS SHARPRIDGE INVESTMENTS, INC.

STATEMENTS OF ASSETS AND LIABILITIES

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CYPRESS SHARPRIDGE INVESTMENTS, INC.

STATEMENTS OF OPERATIONS (UNAUDITED)

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Core Earnings:

Core Earnings represents a non-GAAP financial measure and is defined as net income (loss) excluding net realized gain (loss) on investments, net unrealized appreciation (depreciation) on investments, net realized gain (loss) on termination of swap contracts and unrealized appreciation (depreciation) on swap and cap contracts. In order to evaluate the effective yield of the portfolio, management uses Core Earnings to reflect the net investment income of our portfolio as adjusted to include the net swap and cap interest income (expense). Core Earnings allows management to isolate the interest income (expense) associated with our swaps and caps in order to monitor and project our borrowing costs and interest rate spread. In addition, management utilizes Core Earnings as a key metric in conjunction with other portfolio and market factors to determine the appropriate leverage and hedging ratios, as well as the overall structure of the portfolio.

The Company adopted Accounting Standards Codification (“ASC”) 946, Clarification of the Scope of Audit and Accounting Guide Investment Companies (“ASC 946”), prior to its deferral in February 2008, while most, if not all, other public companies that invest only in Agency RMBS have not adopted ASC 946. Under ASC 946, the Company uses financial reporting specified for investment companies, and accordingly, its investments are carried at fair value with changes in fair value included in earnings. Most other public companies that invest only in Agency RMBS include most changes in the fair value of their investments within shareholders’ equity, not in earnings. As a result, investors are not able to readily compare the Company’s results of operations to those of most of its competitors. The Company believes that the presentation of its Core Earnings is useful to investors because it provides a means of comparing its Core Earnings to those of its competitors. In addition, because Core Earnings isolates the net swap and cap interest income (expense) it provides investors with an additional metric to identify trends in the Company’s portfolio as they relate to the interest rate environment.

The primary limitation associated with Core Earnings as a measure of the Company’s financial performance over any period is that it excludes the effects of net realized gain (loss) from investments. In addition, the Company’s presentation of Core Earnings may not be comparable to similarly-titled measures of other companies, who may use different calculations. As a result, Core Earnings should not be considered as a substitute for the Company’s GAAP net income (loss) as a measure of our financial performance or any measure of our liquidity under GAAP.

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