Radian Group Inc. Notes to Consolidated Financial Statements - (Continued) At December 31, 2012, investments in any person and its af filiates that exceeded 10% of total stockholders’  equity were  as follows:  Securities on deposit with various state insurance commissioners amounted to  $18.0 million and $21.1 million at  December 31, 2012 and 2011, respectively. We also had $172.6 million and $116.4 million (book value) of securities pledged  as collateral in accordance with various reinsurance agreements at  December 31, 2012 and 2011, respectively.  On May 3, 2010, Radian Guaranty sold all of its remaining  28.7% equity interest in Sherman for approximately  $172.0  million in cash. As a result of the sale, in the second quarter of 2010, we recorded a pre-tax gain of approximately  $34.8  million, net of transaction related expenses of  $1.3 million and a pre-tax decrease in accumulated comprehensive income of  $29.7 million. In addition, we agreed to terminate certain rights, including our right to a future contingent payment from a  previous sale of our equity interest in Sherman. The following is a rollforward of our investment in Sherman during 2010:  219 Year Ended December 31, (In thousands) 2010 Sherman Balance, beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 121,424 Share of net income for period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14,590 Dividends received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (29,498) Other comprehensive loss. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (381) Sale of ownership interest. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (106,135) Balance, end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ — Year Ended December 31, 2012 (In thousands) Name  Fixed- Maturities  AFS Equity  Securities  AFS Trading Securities Short-Term Investments Other  Invested  Assets Total Northern Institutional Treasury Portfolio . . . . . . $ — $ — $ — $ 258,560 $ — $ 258,560 State of Illinois . . . . . . . . . . . . . . . . . . . . . . . . . . — — 138,414 — — 138,414 Citigroup Inc . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,102 — 131,405 — — 134,507 BlackRock Liquidity Funds T-Fund Portfolio Money Market . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — 133,391 — 133,391 Bank of America Corp . . . . . . . . . . . . . . . . . . . . 3,170 10,755 100,499 — — 114,424 Vanguard Institutional Index Fund . . . . . . . . . . . — 98,913 — — — 98,913 State of California . . . . . . . . . . . . . . . . . . . . . . . . — — 91,269 — — 91,269 STIT Treasury Portfolio Cash Management Fund . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . — — — 84,018 — 84,018 Federated Treasury Obligations Fund . . . . . . . . . — — — 81,507 — 81,507 Wells Fargo & Co . . . . . . . . . . . . . . . . . . . . . . . . — — 81,463 — — 81,463 Fidelity Institutional Treasury Only Portfolio . . . — — — 80,570 — 80,570 The Royal Bank of Scotland Group plc . . . . . . . — — — — 78,006 78,006 Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 6,272 $ 109,668 $ 543,050 $ 638,046 $ 78,006 $ 1,375,042 8. Investment in Affiliates