EXHIBIT 21 At December 31, 1995 the subsidiaries of Capstead Mortgage Corporation were as follows: STATE OF DOMICILE -------- PARENT COMPANY SUBSIDIARY Capstead Mortgage Corporation ("CMC")............... Maryland Capstead Advisers, Inc............................. Nevada Capstead Capital Corporation....................... Delaware Capstead Select Corporation........................ Delaware Capstead Securities Corporation I.................. Delaware Capstead Securities Corporation II................. Delaware Capstead Securities Corporation III................ Delaware Capstead Securities Corporation IV................. Delaware CMC Securities Corporation I....................... Nevada CMC Securities Corporation III..................... Delaware CMC Securities Corporation IV...................... Delaware CMC ARM Securities Corporation..................... Delaware Capstead Inc.(1)................................... Delaware CMC Securities Corporation II(2).................. Delaware CMC Investment Partnership(3)...................... Texas (1) CMC owns all of the issued and outstanding preferred stock. (2) Capstead Inc. owns all the issued and outstanding common stock. (3) CMC Investment Partnership is a general partnership owned by CMC and Capstead Inc.