1 EXHIBIT 11 CAPSTEAD MORTGAGE CORPORATION AND SUBSIDIARIES COMPUTATION OF PER SHARE EARNINGS 1997 1996 1995 ------------- ------------- ------------- BASIC:* Average number of common shares outstanding 51,257,000 38,317,000 34,631,000 ============= ============= ============= Net income $ 159,926,000 $ 127,228,000 $ 77,359,000 Less cash dividends paid on convertible preferred stock: Series A ($1.60 paid per share) (683,000) (804,000) (939,000) Series B ($1.26 paid per share) (24,774,000) (35,552,000) (38,395,000) ------------- ------------- ------------- Net income available to common stockholders $ 134,469,000 $ 90,872,000 $ 38,025,000 ============= ============= ============= Basic net income per common share $ 2.62 $ 2.37 $ 1.10 DILUTED:* Average number of common shares outstanding 51,257,000 38,317,000 34,631,000 Assumed conversion of convertible preferred stock: Series A 889,000 1,048,000 1,204,000 Series B 14,776,000 21,176,000 ** Incremental shares calculated using the treasury stock method 1,101,000 960,000 48,000 ------------- ------------- ------------- 68,023,000 61,501,000 35,883,000 ============= ============= ============= Net income $ 159,926,000 $ 127,228,000 $ 77,359,000 Less cash dividends paid on Series B Preferred Stock - - (38,395,000) ------------- ------------- ------------- Net income $ 159,926,000 $ 127,228,000 $ 38,964,000 ============= ============= ============= Diluted net income per common share $ 2.35 $ 2.07 $ 1.09 * AMOUNTS PRIOR TO 1997 HAVE BEEN RESTATED AS REQUIRED TO COMPLY WITH STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 128, "EARNINGS PER SHARE." FOR FURTHER DISCUSSION OF NET INCOME PER COMMON SHARE, SEE THE NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS. AMOUNTS HAVE BEEN ADJUSTED FOR 3-FOR-2 COMMON STOCK SPLITS EFFECTIVE OCTOBER 30, 1995 AND JULY 31, 1996. ** THE SERIES B PREFERRED STOCK WAS NOT CONSIDERED CONVERTIBLE FOR PURPOSES OF CALCULATING DILUTED NET INCOME PER SHARE AS IT WAS ANTIDILUTIVE.