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                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-K

[X]            ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE 
               SECURITIES EXCHANGE ACT OF 1934

FOR THE FISCAL YEAR ENDED: DECEMBER 31, 1997
                                       OR

[ ]            TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE 
               SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM              TO 
                               ------------    --------------

COMMISSION FILE NUMBER: 1-8896

                          CAPSTEAD MORTGAGE CORPORATION
             (Exact name of Registrant as specified in its Charter)

             MARYLAND                                     75-2027937
     (State or other jurisdiction of                    (I.R.S. Employer
     incorporation or organization)                     Identification No.)

  2711 NORTH HASKELL, DALLAS, TEXAS                           75204
(Address of principal executive offices)                    (Zip Code)

       Registrant's telephone number, including area code: (214) 874-2323

           SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:



               TITLE OF EACH CLASS                                             NAME OF EXCHANGE ON WHICH REGISTERED
               -------------------                                             ------------------------------------
                                                                            
Common Stock ($0.01 par value)                                                         New York Stock Exchange
$1.60 Cumulative Preferred Stock, Series A ($0.10 par value)                           New York Stock Exchange
$1.26 Cumulative Convertible Preferred Stock, Series B ($0.10 par value)               New York Stock Exchange


Indicate by check mark whether the Registrant (1) has filed all documents and
reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.  YES   X   NO 
                                               -----    -----

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
Regulation S-K is not contained herein, and will not be contained, to the best
of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.

AT FEBRUARY 16, 1998 THE AGGREGATE MARKET VALUE OF THE VOTING STOCK HELD BY
NONAFFILIATES WAS $1,146,290,000.

NUMBER OF SHARES OF COMMON STOCK OUTSTANDING AT FEBRUARY 16, 1998: 59,469,559

                      DOCUMENTS INCORPORATED BY REFERENCE:


(1)  PORTIONS OF THE REGISTRANT'S ANNUAL REPORT TO STOCKHOLDERS FOR THE YEAR
     ENDED DECEMBER 31, 1997 ARE INCORPORATED BY REFERENCE INTO PARTS II AND IV.

(2)  PORTIONS OF THE REGISTRANT'S DEFINITIVE PROXY STATEMENT DATED MARCH 6,
     1998, ISSUED IN CONNECTION WITH THE ANNUAL MEETING OF STOCKHOLDERS OF THE
     REGISTRANT, ARE INCORPORATED BY REFERENCE INTO PART III.


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   2




                 CAPSTEAD MORTGAGE CORPORATION AND SUBSIDIARIES

                          1997 FORM 10-K ANNUAL REPORT

                                TABLE OF CONTENTS




                                                                                                        PAGE
                                                                                                        ----
                                                                                                     
                                                      PART I

ITEM  1.      BUSINESS............................................................................        1

ITEM  2.      PROPERTIES..........................................................................        3

ITEM  3.      LEGAL PROCEEDINGS...................................................................        3

ITEM  4.      SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.................................        3


                                                      PART II

ITEM  5.      MARKET FOR REGISTRANT'S COMMON EQUITY
                AND RELATED STOCKHOLDER MATTERS...................................................        3

ITEM  6.      SELECTED FINANCIAL DATA.............................................................        3

ITEM  7.      MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                CONDITION AND RESULTS OF OPERATIONS...............................................        3

ITEM  3.      FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.........................................        3

ITEM  9.      CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON
                ACCOUNTING AND FINANCIAL DISCLOSURE...............................................        3


                                                     PART III

ITEM 10.      DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT..................................        4

ITEM 11.      EXECUTIVE COMPENSATION..............................................................        4

ITEM 12.      SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
                OWNERS AND MANAGEMENT.............................................................        4

ITEM 13.      CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS......................................        4


                                                      PART IV

ITEM 14.      EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND
                REPORTS ON FORM 8-K...............................................................        4



   3




                                     PART I

ITEM 1.       BUSINESS.

Capstead Mortgage Corporation ("CMC" or the "Company") was incorporated on April
15, 1985 in Maryland and commenced operations in September 1985. The Company's
business plan is to build a mortgage banking operation with investments in
mortgage servicing and mortgage assets with the goal of producing reasonably
balanced operating results in a variety of interest rate environments.

Initially, the Company structured and managed mortgage investments. In late 1992
the Company entered into the mortgage servicing business. Mortgage servicing
includes collecting and accounting for payments of principal and interest from
borrowers, remitting such payments to investors, holding escrow funds for
payment of mortgage-related expenses such as taxes and insurance, making
advances to cover delinquent payments, inspecting the mortgage premises as
required, contacting delinquent mortgagors, supervising foreclosures and
property dispositions in the event of unremedied defaults, and generally
administering the loans. Fees are received for servicing residential mortgage
loans ranging generally from 0.25 to 0.38 percent per annum on the declining
principal balances of the loans and are collected out of monthly mortgage
payments.

For further discussion of the Company's business, see the Registrant's Annual
Report to Stockholders for the year ended December 31, 1997 on pages 38 through
40.

EFFECTS OF INTEREST RATE CHANGES

For discussion of effects of interest rate changes on the Company's mortgage
securities and mortgage servicing portfolios, see the Registrant's Annual Report
to Stockholders for the year ended December 31, 1997 on pages 38, 42 and 43.

OTHER INVESTMENT STRATEGIES

The Company may enter into other short- or long-term investment strategies as
the opportunities arise.

COMPETITION

In purchasing mortgage securities, the Company competes with savings banks,
commercial banks, mortgage and investment bankers, conduits, insurance
companies, other lenders and mutual funds. The competition for the acquisition
of mortgage servicing rights is primarily with mortgage bankers, commercial
banks and savings banks.

REGULATION AND RELATED MATTERS

The Company's mortgage servicing unit is subject to the rules and regulations of
FNMA and FHLMC with respect to servicing mortgage loans. In addition, there are
other federal and state statutes and regulations affecting such activities.
Moreover, the Company is required annually to submit audited financial
statements to FNMA and FHLMC, and each regulatory entity has its own financial
requirements. The Company's affairs are also subject to examination by FNMA and
FHLMC at all times to assure compliance with applicable regulations, policies
and procedures. Many of the aforementioned regulatory requirements are designed
to protect the interests of consumers, while others protect the owners or
insurers of mortgage loans. Failure to comply with these requirements can lead
to loss of approved status, termination of servicing contracts without
compensation to the servicer, 





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   4

demands for indemnification or loan repurchases, class action lawsuits and
administrative enforcement actions.

EMPLOYEES

As of December 31, 1997, the Company had 218 full-time employees.

TAX STATUS

As used herein, "Capstead REIT" refers to CMC and the entities that are
consolidated with CMC for federal income tax purposes. Capstead REIT has elected
to be taxed as a REIT for federal income tax purposes and intends to continue to
do so. As a result of this election, Capstead REIT will not be taxed at the
corporate level on taxable income distributed to stockholders, provided that
certain requirements concerning the nature and composition of its income and
assets are met and that at least 95 percent of its REIT taxable income is
distributed.

If Capstead REIT fails to qualify as a REIT in any taxable year, it would be
subject to federal income tax at regular corporate rates and would not receive a
deduction for dividends paid to stockholders. If this were the case, the amount
of after-tax earnings available for distribution to stockholders would decrease
substantially.

As long as Capstead REIT qualifies as a REIT, it will generally be taxable only
on its undistributed taxable income. Distributions out of current or accumulated
earnings and profits will be taxed to stockholders as ordinary income or capital
gain, as the case may be. Distributions in excess of the Company's accumulated
and current earnings and profits will constitute a non-taxable return of capital
to the stockholders (except insofar as such distributions exceed the cost basis
of the shares of stock) resulting in a corresponding reduction in the cost basis
of the shares of stock. The Company notifies its stockholders of the proportion
of distributions made during the taxable year that constitutes ordinary income,
return of capital or capital gains. For 1997, capital gains are classified as
medium-term on sold assets that were held 12 to 18 months, and long-term on sold
assets that were held longer than 18 months. During 1997, 83.7 percent, 7.5
percent, 7.4 percent and 1.4 percent of the common stock distributions were
characterized as ordinary income, nontaxable return of capital, medium-term
capital gain and long-term capital gain, respectively, while 90.5 percent, 8.6
percent and 0.9 percent of the preferred stock distributions were characterized
as ordinary income, medium-term capital gain and long-term capital gain,
respectively. During 1996, 83.7 percent, 10.4 percent and 5.9 percent of the
common stock distributions were characterized as ordinary income, nontaxable
return of capital and long-term capital gain, respectively, while 93.4 percent
and 6.6 percent of the preferred stock distributions were characterized as
ordinary income and long-term capital gain, respectively. During 1995 all
distributions made were characterized as ordinary income. Distributions by the
Company will not normally be eligible for the dividends received deduction for
corporations. Should the Company incur losses, stockholders will not be entitled
to include such losses in their individual income tax returns.

All taxable income of Capstead Holdings, Inc., and its primary subsidiary
Capstead Inc. (which conducts mortgage servicing operations), is subject to
federal and state income taxes, where applicable. Capstead REIT's taxable income
will include earnings of these subsidiaries only upon payment to Capstead REIT
by distribution of such earnings, and only if these distributions are made out
of current earnings and profits.



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   5

The foregoing is general in character. Reference should be made to pertinent
Internal Revenue Code sections and the Regulations issued thereunder for a
comprehensive statement of applicable federal income tax consequences.

ITEM 2. PROPERTIES.

The Company's operations are conducted in Dallas, Texas on properties leased by
the Company.

ITEM 3. LEGAL PROCEEDINGS.

At December 31, 1997 there were no material pending legal proceedings, outside
the normal course of business, to which the Company or its subsidiaries were a
party or of which any of their property was the subject.

ITEM 4. RESULTS OF SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

None.

                                     PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

The information required by this item is included in the Registrant's Annual
Report to Stockholders for the year ended December 31, 1997 on page 36 under the
caption "Note 14 - Market and Dividend Information," and is incorporated herein
by reference, pursuant to General Instruction G(2).

ITEM 6. SELECTED FINANCIAL DATA.

The information required by this item is included in the Registrant's Annual
Report to Stockholders for the year ended December 31, 1997 on page 37 under the
caption "Selected Financial Data," and is incorporated herein by reference,
pursuant to General Instruction G(2).

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS.

The information required by this item is included in the Registrant's Annual
Report to Stockholders for the year ended December 31, 1997 on pages 38 through
43 under the caption "Management's Discussion and Analysis of Financial
Condition and Results of Operations," and is incorporated herein by reference,
pursuant to General Instruction G(2).

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

The information required by this item is included in the Registrant's Annual
Report to Stockholders for the year ended December 31, 1997 on pages 17 through
36, and is incorporated herein by reference, pursuant to General Instruction
G(2).

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
        FINANCIAL DISCLOSURE.

None.



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                                    PART III

ITEM 10.      DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

The information required by this item is included in the Registrant's definitive
Proxy Statement dated March 6, 1998 on pages 3 through 6 under the captions
"Election of Directors," "Board of Directors" and "Executive Officers," which is
incorporated herein by reference pursuant to General Instruction G(3).

ITEM 11.      EXECUTIVE COMPENSATION.

The information required by this item is included in the Registrant's definitive
Proxy Statement dated March 6, 1998 on pages 7 through 14 under the captions
"Executive Compensation," "Compensation Committee Report on Executive
Compensation," and "Performance Graph," which is incorporated herein by
reference pursuant to General Instruction G(3).

ITEM 12.      SECURITY OWNERSHIP OF MANAGEMENT AND CERTAIN BENEFICIAL OWNERS.

The information required by this item is included in the Registrant's definitive
Proxy Statement dated March 6, 1998 on pages 16 and 17 under the caption
"Security Ownership of Management and Certain Beneficial Owners," which is
incorporated herein by reference pursuant to General Instruction G(3).

ITEM 13.      CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

None.
                                                      PART IV

ITEM 14.      EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.

       (a)    Documents filed as part of this report:

              1.    The following financial statements of the Company, included
                    in the 1997 Annual Report to Stockholders, are incorporated
                    herein by reference:



                    PAGE
                    ----
                                                                                                           
                    Consolidated Statement of Income - Years
                      Ended December 31, 1997, 1996 and 1995........................................           *
                    Consolidated Balance Sheet -
                      December 31, 1997 and 1996....................................................           *
                    Consolidated Statement of Stockholders' Equity -
                      Three Years Ended December 31, 1997...........................................           *
                    Consolidated Statement of Cash Flows - Years
                      Ended December 31, 1997, 1996 and 1995........................................           *
                    Notes to Consolidated Financial Statements -
                      December 31, 1997.............................................................           *


              2.    Financial statement schedule:
                    Schedule IV - Mortgage Loans on Real Estate.....................................           9


              NOTE: All other schedules for which provision is made in the
              applicable accounting regulation of the Securities and Exchange
              Commission are not required under the related instructions or are
              inapplicable, and therefore have been omitted.

              *     Incorporated herein by reference from the Company's Annual
                    Report to Stockholders for the year ended December 31, 1997.



                                      -4-
   7

                                     PART IV
                              ITEM 14. -- CONTINUED

              3.    Exhibits:

                    EXHIBIT
                    NUMBER

                     1.3         Sales Agency Agreement dated as of December 6,
                                 1995 between Capstead Mortgage Corporation and
                                 PaineWebber Incorporated (the "Sales Agency
                                 Agreement")(6)
                     1.4         Amendment No. 1 to the Sales Agency Agreement 
                                 dated as of September 10, 1996 between Capstead
                                 Mortgage Corporation and PaineWebber
                                 Incorporated (the "Common Stock Sales Agency
                                 Agreement")(8)
                     1.5         Sales Agency Agreement dated as of August 17, 
                                 1996 Capstead Mortgage Corporation and
                                 PaineWebber Incorporated (the "Series B
                                 Preferred Stock 1996 Sales Agency
                                 Agreement")(8)
                     1.6         The Second Amendment dated as of March 4, 1997
                                 to the Sales Agency Agreement dated as of
                                 December 6, 1995 between the Company and
                                 PaineWebber Incorporated (the "Common Stock
                                 Sales Agency Agreement")(9)
                     1.7         The First Amendment dated as of March 4, 1997
                                 to the Sales Agency Agreement dated as of
                                 September 17, 1996 between the Company and
                                 PaineWebber Incorporated (the "Series B
                                 Preferred Stock 1996 Sales Agency
                                 Agreement")(9)
                     1.8         The Third Amendment dated as of November 17,
                                 1997 to the Sales Agency Agreement dated as of
                                 December 6, 1995 between the Company and
                                 PaineWebber Incorporated (the "Sales Agency
                                 Agreement")(11)
                     3.1(a)      Charter of the Company, which includes Articles
                                 of Incorporation, Articles Supplementary for
                                 each outstanding Series of Preferred Stock and
                                 all other amendments to such Articles of
                                 Incorporation(4)
                      3.1(b)     Articles Supplementary ($1.26 Cumulative 
                                 Convertible Preferred Stock, Series B)(3)
                      3.2        Bylaws of the Company, as amended(4)
                     10.21       1990 Employee Stock Option Plan(1)
                     10.22       1990 Directors' Stock Option Plan(2)
                                 Employment Agreement dated August 1, 1992 
                                 between Capstead Mortgage Corporation
                      10.23      and Ronn K. Lytle(3)
                      10.24      Restricted Stock Grant Agreement dated 
                                 August 1, 1992 between Capstead Mortgage
                                 Corporation and Ronn K. Lytle(3)
                      10.25      1994 Flexible Long Term Incentive Plan(5)
                      10.26      1994 Capstead Inc. Restricted Stock Plan(5)
                      10.27      Capstead Mortgage Corporation Deferred
                                 Compensation Plan(5)
                      10.28      Summary of Employment Agreement dated 
                                 December 9, 1993 between Capstead Mortgage
                                 Corporation and Christopher T. Gilson(5)
                      10.29      Capstead Mortgage Corporation Incentive Bonus
                                 Plan(7)
                      10.30      Amendment to the 1994 Flexible Long Term
                                 Incentive Plan(7)
                      10.31      Amendment No. 1 dated March 31, 1997 to the  
                                 Employment Agreement dated August 1, 1992
                                 between the Company and Ronn K. Lytle(10)



                                      -5-
   8




                                     PART IV
                              ITEM 14. -- CONTINUED



              3.    Exhibits (continued):

                    EXHIBIT
                    NUMBER

                      10.32      1997 Flexible Long Term Incentive Plan(10)
                      11         Computation of per share earnings*
                      12         Computation of ratio of earnings to combined
                                 fixed charges and preferred stock dividends*
                      13         Portions of the Annual Report to Stockholders 
                                 of the Company for the year ended December 31,
                                 1997*
                      21         List of subsidiaries of the Company*
                      23         Consent of Ernst & Young LLP, Independent 
                                 Auditors*
                      27         Financial Data Schedule (electronic filing 
                                 only)*

               (1)   Incorporated by reference to the Company's Registration 
                     Statement on Form S-8 (No. 33-40016) dated April 29, 1991
               (2)   Incorporated by reference to the Company's Registration
                     Statement on Form S-8 (No. 33-40017) dated April 29, 1991
               (3)   Incorporated by reference to the Company's Annual Report on
                     Form 10-K for the year ended December 31, 1992
               (4)   Incorporated by reference to the Company's Registration
                     Statement on Form S-3 (No. 33-62212) dated May 6, 1993
               (5)   Incorporated by reference to the Company's Annual Report on
                     Form 10-K for the year ended December 31, 1994
               (6)   Incorporated by reference to the Company's Current Report 
                     of Form 8-K dated December 6, 1995
               (7)   Incorporated by reference to the Company's 10-Q for the 
                     quarterly period ended March 31, 1996
               (8)   Incorporated by reference to the Company's Current Report 
                     of Form 8-K dated August 20, 1996
               (9)   Incorporated by reference to the Company's Current Report 
                     of Form 8-K dated March 26, 1997
               (10)  Incorporated by reference to the Company's 10-Q for the 
                     quarterly period ended March 31, 1997
               (11)  Incorporated by reference to the Company's Current Report 
                     of Form 8-K dated December 23, 1997

                *    Filed herewith

       (b)    Reports on Form 8-K:

              Current Report on Form 8-K dated December 22, 1997 to file the
              following:

              Exhibit 1.8 - The Third Amendment dated as of November 17, 1997 to
              the Sales Agency Agreement dated as of December 6, 1995 between
              the Company and PaineWebber Incorporated (the "Sales Agency
              Agreement").

       (c)    Exhibits - The response to this section of ITEM 14 is submitted 
              as a  separate  section of this report.

       (d)    Financial Statement Schedules - The response to this section of 
              ITEM 14 is submitted as a separate section of this report.



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                                   SIGNATURES



Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Company has duly caused this report to be signed on its behalf
by the undersigned, thereunto duly authorized.

                                                CAPSTEAD MORTGAGE CORPORATION
                                                           REGISTRANT


Date:  March 10, 1998                       By:     /s/ ANDREW F. JACOBS
                                               ---------------------------------
                                                       Andrew F. Jacobs
                                                Senior Vice President-Control,
                                                   Treasurer and Secretary


Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the Registrant and
in the capacities indicated below and on the dates indicated.



                                                                                               
 /s/ RONN K. LYTLE                                  Chairman, Chief                                  March 10, 1998
- -------------------------------                       Executive Officer
        (Ronn K. Lytle)                               and Director


 /s/ ANDREW F. JACOBS                               Senior Vice President-                           March 10, 1998
- -------------------------------                       Control, Treasurer
       (Andrew F. Jacobs)                             and Secretary


 /s/ BEVIS LONGSTRETH                               Director                                         March 11, 1998
- -------------------------------
      (Bevis Longstreth)


 /s/ PAUL M. LOW                                    Director                                         March 12, 1998
- -------------------------------
         (Paul M. Low)


 /s/ HARRIET E. MIERS                               Director                                         March 11, 1998
- -------------------------------
      (Harriet E. Miers)


 /s/ WILLIAM R. SMITH                               Director                                         March 10, 1998
- -------------------------------
     (William R. Smith)


 /s/ JOHN C. TOLLESON                               Director                                         March 11, 1998
- -------------------------------
        (John C. Tolleson)





                                      -7-
   10
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                PORTIONS OF THE
                                        
                           ANNUAL REPORT ON FORM 10-K
                                        
                          ITEMS 14(A)(1), (2) AND (3)
                                        
                   FINANCIAL STATEMENT SCHEDULES AND EXHIBITS
                                        
                          YEAR ENDED DECEMBER 31, 1997
                                        
                         CAPSTEAD MORTGAGE CORPORATION
                                        
                                 DALLAS, TEXAS
                                        
                                        
                                        
                                      -8-
   11





                 CAPSTEAD MORTGAGE CORPORATION AND SUBSIDIARIES
                  SCHEDULE IV -- MORTGAGE LOANS ON REAL ESTATE
                                DECEMBER 31, 1997





         PART 1 - MORTGAGE LOANS ON REAL ESTATE AT CLOSE OF PERIOD(1)
- --------------------------------------------------------------------------------------
              COLUMN A                                COLUMN B           COLUMN C
- -----------------------------------------------       --------        ---------------
                                                                               
                                                                               
                                                                               
                                                       PRIOR          CARRYING AMOUNT
            DESCRIPTION                                LIENS          OF MORTGAGES(2)
- -----------------------------------------------        -----          ---------------
                                                               
$    -0- - $   49,999(  3) ....................         None         $     99,000
$ 50,000 - $   99,999( 11) ....................         None              901,000
$100,000 - $  149,999( 33) ....................         None            4,437,000
$150,000 - $  199,999(176) ....................         None           32,440,000
$200,000 - $  249,999(569) ....................         None          127,407,000
$250,000 - $  299,999(304) ....................         None           83,280,000
$300,000 - $  349,999(145) ....................         None           47,076,000
$350,000 - $  399,999( 98) ....................         None           36,917,000
$400,000 - $  449,999( 47) ....................         None           20,390,000
$450,000 - $  499,999( 24) ....................         None           11,862,000
$500,000 - $1,500,000( 60) ....................         None           35,427,000
                                                                     ------------
                                                                      400,236,000

        Plus premium ..........................                         1,978,000
        Plus unrealized gain on mortgage
          loans included in debt securities ...                         4,651,000
                                                                     ------------
                                                                     $406,865,000
                                                                     ============


                                                                                                             PART 2 - INTEREST
                      PART 1 - MORTGAGE LOANS ON REAL ESTATE AT CLOSE OF PERIOD(1)                          EARNED ON MORTGAGES
- --------------------------------------------------------------------------------------------------------- ------------------------
              COLUMN A                                              COLUMN D                  COLUMN E    COLUMN F AND COLUMN G(4)
- -----------------------------------------------         --------------------------------    ------------- ------------------------
                                                         AMOUNT OF PRINCIPAL UNPAID AT      
                                                                CLOSE OF PERIOD             
                                                        ---------------------------------    AMOUNT OF
                                                                              SUBJECT TO      MORTGAGE
                                                                              DELINQUENT       BEING         WEIGHTED AVERAGE
            DESCRIPTION                                    TOTAL              INTEREST(3)   FORECLOSED(3)     INTEREST RATE
- -----------------------------------------------         ------------         -------------  -------------    ---------------
                                                                                                 
$    -0- - $   49,999(  3) ....................         $     99,000         $     37,000   $     37,000           8.60%
$ 50,000 - $   99,999( 11) ....................              901,000               78,000         78,000           8.09%
$100,000 - $  149,999( 33) ....................            4,437,000              941,000        268,000           8.15%
$150,000 - $  199,999(176) ....................           32,440,000            3,375,000      1,119,000           8.45%
$200,000 - $  249,999(569) ....................          127,407,000            8,228,000      3,540,000           8.08%
$250,000 - $  299,999(304) ....................           83,280,000            7,327,000      2,449,000           8.09%
$300,000 - $  349,999(145) ....................           47,076,000            6,128,000      1,643,000           8.01%
$350,000 - $  399,999( 98) ....................           36,917,000            2,192,000        722,000           8.44%
$400,000 - $  449,999( 47) ....................           20,390,000            1,278,000        853,000           8.62%
$450,000 - $  499,999( 24) ....................           11,862,000            2,339,000      1,861,000           8.18%
$500,000 - $1,500,000( 60) ....................           35,427,000            3,440,000      2,883,000           8.13%
                                                        ------------         ------------   ------------       
                                                        $400,236,000         $ 35,363,000   $ 15,453,000       
                                                                             ============   ============       

        Plus premium ..........................    
        Plus unrealized gain on mortgage
          loans included in debt securities ...    

                                                   







See accompanying notes to Schedule IV.



                                      -9-
   12





                 CAPSTEAD MORTGAGE CORPORATION AND SUBSIDIARIES
                              NOTES TO SCHEDULE IV


(1)    Mortgage loans at December 31, 1997 consisted of single-family,
       conventional, first mortgage loans most of which are included in
       AAA-rated private mortgage pass-through securities ("Mortgage
       Pass-Throughs"). The Company classifies its mortgage loans by interest
       rate characteristics of the underlying mortgage loans. Fixed-rate
       mortgage loans (i) have fixed rates of interest for their entire terms,
       (ii) have an initial fixed-rate period of 10 years after origination and
       then adjust annually based on a specified margin over 1-year U.S.
       Treasury Securities ("1-year Treasuries"), or (iii) were previously
       classified as medium-term and have adjusted to a fixed rate for the
       remainder of their terms. Medium-term mortgage loans have (i) an initial
       fixed-rate period of 3 or 5 years after origination and then adjust
       annually based on a specified margin over 1-year Treasuries, (ii) initial
       interest rates that adjust one time, approximately 5 years following
       origination of the mortgage loan, based on a specified margin over
       Federal National Mortgage Association ("FNMA") yields for 30-year,
       fixed-rate commitments at the time of adjustment (together referred to as
       "hybrid securities") or (iii) fixed-rate mortgage securities that have
       expected weighted average lives of 5 years or less. Adjustable-rate
       mortgage loans either (i) adjust semiannually based on a specified margin
       over the 6-month London Interbank Offered Rate ("LIBOR"), (ii) adjust
       annually based on a specified margin over 1-year Treasuries, or (iii)
       were previously classified as medium-term and have begun adjusting
       annually based on a specified margin over 1-year Treasuries. Principal
       amount of mortgage loans in the portfolio totaling $82,953,000, or 20.4
       percent, were fixed-rate loans; $159,337,000, or 39.2 percent, were
       medium-term loans; and $164,575,000, or 40.4 percent, were
       adjustable-rate loans.


                                                                                                  
(2)     Reconciliation of mortgage loans: 
        Balance at December 31, 1996 (after reclassification to 
           conform to the current-year presentation)...................                                 $493,702,000
           Additions:
             Transfers of mortgage loans
               from CMO investments.................................            135,607,000
             Change in fair value of
               Mortgage Pass-Throughs...............................              2,202,000              137,809,000
                                                                                -----------              -----------
                                                                                                         631,511,000
           Deductions:
             Principal collections..................................            150,604,000
             Amortization of discount...............................                715,000
             Sales                                                               73,327,000              224,646,000
                                                                                ------------            ------------
        Balance at December 31, 1997................................                                    $406,865,000
                                                                                                        ============


(3)    Consists of all mortgage loans delinquent 90 days or more. Note that of
       the amount of principal unpaid at the close of the period that is subject
       to delinquent principal, $35.3 million is covered by mortgage pool
       insurance that effectively limits the Company's loss. Similarly, $7.8
       million of the amount of mortgages being foreclosed is covered by pool
       insurance.

(4)    Interest due and accrued at the end of the period and interest income
       earned applicable to the period for each of the categories presented
       above is not available without unreasonable effort or expense and
       therefore has been omitted in accordance with Rule 12-23 of Regulation
       S-X. Total accrued interest for the above listed mortgage loans totaled
       $2,562,000 at December 31, 1997.



                                      -10-
   13





                 CAPSTEAD MORTGAGE CORPORATION AND SUBSIDIARIES
                        NOTES TO SCHEDULE IV -- CONTINUED



(5)    The geographic distribution of the Company's portfolio at December 31,
       1997 was as follows:



                                                                                      NUMBER             PRINCIPAL
                                       STATE                                         OF LOANS             AMOUNT
         ------------------------------------------------------------------          --------            ---------
                                                                                                  
        Alabama.............................................................              2             $    266,000
        Arizona.............................................................              4                1,124,000
        California..........................................................          1,172              310,617,000
        Colorado............................................................              5                1,443,000
        Connecticut.........................................................              3                  768,000
        Delaware............................................................              2                  847,000
        District of Columbia................................................              9                3,175,000
        Florida.............................................................             29                9,092,000
        Georgia.............................................................             31                7,736,000
        Hawaii..............................................................              3                  517,000
        Illinois............................................................              8                2,426,000
        Indiana.............................................................              1                  147,000
        Louisiana...........................................................              6                1,707,000
        Maryland............................................................             27                9,240,000
        Massachusetts.......................................................              7                1,996,000
        Michigan............................................................              7                3,150,000
        Missouri............................................................              3                1,072,000
        Nevada..............................................................              5                  744,000
        New Jersey..........................................................             32                8,089,000
        New Mexico..........................................................              9                2,958,000
        New York............................................................              9                2,780,000
        North Carolina......................................................              2                  496,000
        Ohio................................................................              1                  366,000
        Oklahoma............................................................              7                1,983,000
        Pennsylvania........................................................              8                3,165,000
        Tennessee...........................................................              1                  161,000
        Texas...............................................................             23                7,294,000
        Virginia............................................................             42               14,798,000
        Washington..........................................................             11                1,947,000
        Wisconsin...........................................................              1                  132,000
                                                                                      -----             ------------

                                                                                                         400,236,000

        Plus premium........................................................                               1,978,000
        Plus unrealized gain on mortgage loans
          included in debt securities.......................................                               4,651,000
                                                                                                        ------------

             Total..........................................................          1,470             $406,865,000
                                                                                      =====             ============






                                      -11-
   14



       EXHIBIT
       NUMBER
       ------
                 
        1.3         Sales Agency Agreement dated as of December 6,
                    1995 between Capstead Mortgage Corporation and
                    PaineWebber Incorporated (the "Sales Agency
                    Agreement")(6)
        1.4         Amendment No. 1 to the Sales Agency Agreement 
                    dated as of September 10, 1996 between Capstead
                    Mortgage Corporation and PaineWebber
                    Incorporated (the "Common Stock Sales Agency
                    Agreement")(8)
        1.5         Sales Agency Agreement dated as of August 17, 
                    1996 Capstead Mortgage Corporation and
                    PaineWebber Incorporated (the "Series B
                    Preferred Stock 1996 Sales Agency
                    Agreement")(8)
        1.6         The Second Amendment dated as of March 4, 1997
                    to the Sales Agency Agreement dated as of
                    December 6, 1995 between the Company and
                    PaineWebber Incorporated (the "Common Stock
                    Sales Agency Agreement")(9)
        1.7         The First Amendment dated as of March 4, 1997
                    to the Sales Agency Agreement dated as of
                    September 17, 1996 between the Company and
                    PaineWebber Incorporated (the "Series B
                    Preferred Stock 1996 Sales Agency
                    Agreement")(9)
        1.8         The Third Amendment dated as of November 17,
                    1997 to the Sales Agency Agreement dated as of
                    December 6, 1995 between the Company and
                    PaineWebber Incorporated (the "Sales Agency
                    Agreement")(11)
        3.1(a)      Charter of the Company, which includes Articles
                    of Incorporation, Articles Supplementary for
                    each outstanding Series of Preferred Stock and
                    all other amendments to such Articles of
                    Incorporation(4)
        3.1(b)      Articles Supplementary ($1.26 Cumulative 
                    Convertible Preferred Stock, Series B)(3)
        3.2         Bylaws of the Company, as amended(4)
       10.21        1990 Employee Stock Option Plan(1)
       10.22        1990 Directors' Stock Option Plan(2)
                    Employment Agreement dated August 1, 1992 
                    between Capstead Mortgage Corporation
       10.23        and Ronn K. Lytle(3)
       10.24        Restricted Stock Grant Agreement dated 
                    August 1, 1992 between Capstead Mortgage
                    Corporation and Ronn K. Lytle(3)
       10.25        1994 Flexible Long Term Incentive Plan(5)
       10.26        1994 Capstead Inc. Restricted Stock Plan(5)
       10.27        Capstead Mortgage Corporation Deferred
                    Compensation Plan(5)
       10.28        Summary of Employment Agreement dated 
                    December 9, 1993 between Capstead Mortgage
                    Corporation and Christopher T. Gilson(5)
       10.29        Capstead Mortgage Corporation Incentive Bonus
                    Plan(7)
       10.30        Amendment to the 1994 Flexible Long Term
                    Incentive Plan(7)
       10.31        Amendment No. 1 dated March 31, 1997 to the  
                    Employment Agreement dated August 1, 1992
                    between the Company and Ronn K. Lytle(10)





   15




         EXHIBIT
         NUMBER
         ------
                   
           10.32      1997 Flexible Long Term Incentive Plan(10)
           11         Computation of per share earnings*
           12         Computation of ratio of earnings to combined
                      fixed charges and preferred stock dividends*
           13         Portions of the Annual Report to Stockholders 
                      of the Company for the year ended December 31,
                      1997*
           21         List of subsidiaries of the Company*
           23         Consent of Ernst & Young LLP, Independent Auditors*
           27         Financial Data Schedule (electronic filing only)*


(1)   Incorporated by reference to the Company's Registration 
      Statement on Form S-8 (No. 33-40016) dated April 29, 1991
(2)   Incorporated by reference to the Company's Registration
      Statement on Form S-8 (No. 33-40017) dated April 29, 1991
(3)   Incorporated by reference to the Company's Annual Report on
      Form 10-K for the year ended December 31, 1992
(4)   Incorporated by reference to the Company's Registration
      Statement on Form S-3 (No. 33-62212) dated May 6, 1993
(5)   Incorporated by reference to the Company's Annual Report on
      Form 10-K for the year ended December 31, 1994
(6)   Incorporated by reference to the Company's Current Report 
      of Form 8-K dated December 6, 1995
(7)   Incorporated by reference to the Company's 10-Q for the 
      quarterly period ended March 31, 1996
(8)   Incorporated by reference to the Company's Current Report 
      of Form 8-K dated August 20, 1996
(9)   Incorporated by reference to the Company's Current Report 
      of Form 8-K dated March 26, 1997
(10)  Incorporated by reference to the Company's 10-Q for the 
      quarterly period ended March 31, 1997
(11)  Incorporated by reference to the Company's Current Report 
      of Form 8-K dated December 23, 1997

 *    Filed herewith