Comparative Balance Sheets (dollars in thousands, except per share amounts) 12 June 30, December 31, December 31, December 31, December 31, 2011 2010 2009 2008 2007 (unaudited) Assets Mortgage securities and similar investments 11,424,161 $ 8,515,691 $ 8,091,103 $ 7,499,530 $ 7,108,719 $ Cash collateral receivable from interest rate swap counterparties 33,327 35,289 30,485 53,676 1,800 Interest rate swap agreements at fair value 9,356 9,597 1,758 - - Cash and cash equivalents 258,377 359,590 409,623 96,839 6,653 Receivables and other assets 91,404 76,078 92,817 76,200 88,637 Investments in unconsolidated affiliates 3,117 3,117 3,117 3,117 3,117 11,819,742 $ 8,999,362 $ 8,628,903 $ 7,729,362 $ 7,208,926 $ Liabilities Repurchase arrangements and similar borrowings 10,437,387 $ 7,792,743 $ 7,435,256 $ 6,751,500 $ 6,500,362 $ Cash collateral payable to interest rate swap counterparties 600 9,024 - - - Interest rate swap agreements at fair value 19,962 16,337 9,218 46,679 2,384 Unsecured borrowings 103,095 103,095 103,095 103,095 103,095 Common stock dividend payable 39,132 27,401 37,432 22,728 9,786 Accounts payable and accrued expenses 22,669 23,337 29,961 44,910 32,382 10,622,845 7,971,937 7,614,962 6,968,912 6,648,009 Stockholders' Equity Perpetual preferred stock 179,982 179,323 179,333 179,460 179,533 Common stock 816,550 674,202 661,724 618,369 344,423 Accumulated other comprehensive income (loss) 200,365 173,900 172,884 (37,379) 36,961 1,196,897 1,027,425 1,013,941 760,450 560,917 11,819,742 $ 8,999,362 $ 8,628,903 $ 7,729,362 $ 7,208,926 $ liquidation preferences for the Series A and B preferred stock) $12.46 $12.02 $11.99 $9.14 $9.25 unsecured borrowings, net of investments in related unconsolidated affiliates) $1,296,875 $1,127,403 $1,113,919 $860,428 $660,895 divided by long-term investment capital) 8.05:1 6.91:1 6.67:1 7.85:1 9.84:1 Book value per common share (calculated assuming (stockholders’ equity and Portfolio leverage (borrowings under repurchase arrangements Long-term investment capital |