Capstead Mortgage Corporation Announces Third Quarter 2006 Results.

DALLAS -- Capstead Mortgage Corporation (NYSE:CMO) today reported a loss from continuing operations of $1,493,000 for the quarter ended September 30, 2006 compared to income from continuing operations of $275,000 for the second quarter of 2006. After considering the payment of preferred share dividends, the results for these two periods of 2006 produced losses from continuing operations attributable to common stockholders of $0.35 and $0.25 per diluted common share, respectively. Income from continuing operations for the third quarter of 2005 was $4,147,000, or a loss of $0.05 per diluted common share, after the payment of preferred share dividends.

Third Quarter Results and Related Discussion

Operating results for the third quarter of 2006 declined over the second quarter of 2006 reflecting lower financing spreads (the difference between yields earned on the Company's portfolio of primarily residential adjustable-rate mortgage ("ARM") securities and rates charged on related borrowings) as the effects of second quarter increases in the federal funds rate were reflected in third quarter borrowing rates. During the third quarter of 2006 Capstead increased its residential mortgage securities portfolio to approximately $5.2 billion with acquisitions of ARM securities totaling $810 million, more than offsetting $436 million of portfolio runoff. Increases in the portfolio during the third quarter reflect the deployment of $25 million of long-term investment capital made available from the issuance of long-term unsecured borrowings and a significant improvement in the value of the portfolio. Year-to-date portfolio additions totaled $2.1 billion while runoff totaled $1.3 billion.

Overall portfolio yields averaged 5.04% during the third quarter of 2006, a 27 basis point improvement over the second quarter of 2006, reflecting the benefit of higher coupon interest rates on the underlying mortgage loans that reset during the period. Mortgage prepayments decreased slightly during the third quarter to an annualized runoff rate of 31% from 32% during the second quarter. The level of mortgage prepayments impacts how quickly purchase premiums are written off against earnings as portfolio yield adjustments. Yields on ARM securities fluctuate with changes in mortgage prepayments and adjust over time to more current interest rates as coupon interest rates on the underlying mortgage loans reset periodically. Coupon interest rate resets are expected to continue trending higher, contributing to improving portfolio yields in the coming quarters. For example, given expectations for relatively stable short-term interest rates, overall portfolio yields are expected to improve 33 basis points to average 5.37% during the fourth quarter of 2006 and the average yield on the existing portfolio (adjusted for expected portfolio acquisitions through December 31, 2006) should approximate 5.86% by the third quarter of 2007. Actual yields will depend on portfolio composition as well as fluctuations in interest rates and mortgage prepayment rates.

Interest rates on borrowings secured by residential mortgage securities averaged 5.20% during the third quarter of 2006, an increase of 37 basis points over the second quarter of 2006. Interest rates on most of these borrowings reset monthly based on the one-month London Interbank Offered Rate ("LIBOR"). Given market expectations that the Federal Reserve's Open Market Committee ("Federal Reserve") will not increase the federal funds rate during the fourth quarter, the Company's borrowing rates should remain at these levels. Borrowings supporting longer-to-reset ARM securities generally have longer-term maturities effectively locking-in financing spreads during a significant portion of the fixed-rate terms of these investments. As of quarter-end, these borrowings totaled $1.2 billion at a rate of 4.81% and an average maturity of 24 months, $30 million of which will mature during the fourth quarter of 2006.

Commenting on current market conditions and earnings prospects, Andrew F. Jacobs, President and Chief Executive Officer said, "The Federal Reserve's decision not to increase the federal funds rate at its last two meetings was encouraging and may signal the beginning of a long awaited period of more stable short-term interest rates. The cumulative effect on our borrowing costs from 17 consecutive 25 basis point increases in the federal funds rate through the June 29 Federal Reserve meeting, however, has taken its toll on our current financial results. Financing spreads on our core portfolio of ARM securities declined significantly over this two-year period of rising short-term interest rates. Provided the Federal Reserve is finished raising the federal funds rate, interest rates on our borrowings should stabilize. As a result, financing spreads and financial results are expected to improve in future quarters because the yields on our ARM portfolio should continue increasing throughout the remainder of 2006 and 2007.

"With the markets becoming more comfortable in the belief that the Federal Reserve has ended its current tightening cycle, U.S. Treasury yields have declined considerably since June 30, 2006. Together with higher yields on our residential mortgage securities portfolio as underlying coupon interest rates reset higher, this lower rate environment contributed to an improvement of over $24 million in the value of the portfolio as of quarter-end. After considering the payment of third quarter common and preferred dividends, our book value per common share improved $0.92 during the quarter and, assuming a stable interest rate environment, should improve further in the coming quarters as portfolio yields continue to increase.

"The Company recently privately placed another $25 million in 10-year fixed, 20-year floating unsecured borrowings through a statutory trust bringing the total increase in our long-term investment capital from issuing unsecured borrowings to $100 million during the last twelve months. Like the previous issuances, the net proceeds from this latest offering have been invested primarily in our core ARM securities portfolio as we believe the current environment in the residential mortgage securities markets represents a good opportunity to further increase this portfolio at attractive prices, especially considering the expectation of more stable short-term interest rates.

"We remain confident our core investment strategy of maintaining a large portfolio of residential ARM securities, prudently augmented with investments in credit-sensitive commercial real estate-related assets, has put us in an excellent position to generate attractive returns for our stockholders over the longer term and we look forward to improving financial results in the future."

Book Value per Common Share

As of September 30, 2006, Capstead's book value per common share was $8.16, an improvement of $0.92 since June 30, 2006 and a decline of $0.32 from December 31, 2005. The year-to-date decline was caused primarily by common and preferred dividend payments in excess of earnings offset by improvements during the third quarter in valuation of the Company's residential mortgage securities portfolio attributable to recent declines in market interest rates and increased yields on current-reset ARM securities. Increases in fair value of the Company's mortgage securities and similar investments (most of which are carried at fair value with changes reflected in stockholders' equity) increased book value by $0.43 per share since year-end while preferred and common dividend payments in excess of earnings lowered book value by $0.78 per share.

The fair value of the Company's mortgage securities and similar investments can be expected to fluctuate with changes in portfolio size and composition as well as changes in interest rates and market liquidity, and such changes will largely be reflected in book value per common share. Because most of the Company's investments adjust to more current rates at least annually, declines in fair value caused by increases in interest rates can be largely recovered in a relatively short period of time. Book value will also be affected by other factors, including capital stock transactions and the level of dividend distributions relative to quarterly operating results; however, temporary changes in fair value of investments not held in the form of securities, such as commercial real estate loans, generally will not affect book value. Additionally, changes in fair value of the Company's liabilities, such as its longer-term borrowings supporting investments in longer-to-reset ARM securities, are not reflected in book value. As of September 30, 2006, unrealized gains on these longer-term borrowings totaled $1.9 million, or $0.10 per share.

About Capstead

Capstead Mortgage Corporation is a real estate investment trust headquartered in Dallas, Texas. Capstead earns income primarily from investing in real estate-related assets on a leveraged basis. These investments currently consist primarily of residential ARM securities issued and guaranteed by government-sponsored entities, either Fannie Mae or Freddie Mac, or by an agency of the federal government, Ginnie Mae. Capstead also seeks to opportunistically invest a portion of its investment capital in credit-sensitive commercial real estate-related assets, including subordinate commercial real estate loans.

Forward-looking Statements

This document contains "forward-looking statements" (within the meaning of the Private Securities Litigation Reform Act of 1995) that inherently involve risks and uncertainties. Capstead's actual results and liquidity can differ materially from those anticipated in these forward-looking statements because of changes in the level and composition of the Company's investments and unforeseen factors. As discussed in the Company's filings with the Securities and Exchange Commission, these factors may include, but are not limited to, changes in general economic conditions, the availability of suitable qualifying investments from both an investment return and regulatory perspective, the availability of new investment capital, fluctuations in interest rates and levels of mortgage prepayments, deterioration in credit quality and ratings, the effectiveness of risk management strategies, the impact of leverage, liquidity of secondary markets and credit markets, increases in costs and other general competitive factors. In addition to the above considerations, actual results and liquidity related to investments in loans secured by commercial real estate are affected by lessee performance under lease agreements, changes in general as well as local economic conditions and real estate markets, increases in competition and inflationary pressures, changes in the tax and regulatory environment including zoning and environmental laws, uninsured losses or losses in excess of insurance limits and the availability of adequate insurance coverage at reasonable costs, among other factors.

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(a) Unrealized gains and losses on investments in mortgage securities classified as available-for-sale are recorded in stockholders' equity as a component of "Accumulated other comprehensive income (loss)." Gains or losses are generally recognized in earnings only if sold. Investments in unsecuritized loans either owned outright or by an unconsolidated affiliate are not subject to mark-to-market accounting and therefore have been excluded from this analysis. Similarly, unrealized gains or losses on the Company's liabilities, such as its longer-term borrowings supporting investments in longer-to-reset ARM securities, are excluded from this analysis. As of September 30, 2006 unrealized gains on these longer-term borrowings totaled $1.9 million.

(b) Capstead classifies its ARM securities based on the average length of time until the loans underlying each security reset to more current rates ("months-to-roll") (18 months or less for "current-reset" ARM securities, and greater than 18 months for "longer-to-reset" ARM securities). As of September 30, 2006, average months-to-roll for current-reset and longer-to-reset ARM securities was less than six months and 43 months, respectively. Once an ARM loan reaches its initial reset date, it will typically reset once or twice a year to a margin over a corresponding interest rate index, subject to periodic and lifetime limits or caps.

(c) Investments in mortgage securities classified as held-to-maturity are carried on the balance sheet at amortized cost.

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(a) Basis represents the Company's investment before unrealized gains and losses. Asset yields, runoff rates, borrowing rates and resulting financing spread are presented on an annualized basis.

(b) Projected annualized yields reflect ARM coupon resets and lifetime runoff assumptions as adjusted for expected portfolio acquisitions over the next three months and runoff expectations over the next twelve months, as of the date of this press release. Actual yields realized in future periods largely depend upon (i) changes in portfolio composition, (ii) actual ARM coupon resets, which can fluctuate from projections based on changes to the underlying indexes, (iii) actual runoff and (iv) any changes in lifetime runoff assumptions. Interest rates on borrowings that reset every 30 days based on 30-day London Interbank offered Rate ("LIBOR") reflect no changes in the federal funds rate during the forecast period. Projected average portfolio yields, borrowing rates, financing spreads and runoff rates over the next four quarters for Capstead's existing portfolio, (adjusted for expected portfolio acquisitions through December 31, 2006 only), are as follows:

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(c) The Company generally uses its liquidity to pay down borrowings. Return on assets is calculated on an annualized basis assuming the use of this liquidity to reduce borrowing costs.