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Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased (Tables)
9 Months Ended
Sep. 30, 2012
Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased [Abstract]  
Components Of Trading Securities Owned And Trading Securities Sold, But Not Yet Purchased

 

 

 

 

 

 

 

September 30,

 

December 31,

 

2012

 

2011

Trading securities owned:

 

 

 

 

 

U.S. government agency securities

$

144,286 

 

$

66,424 

U.S. government securities

 

8,059 

 

 

32,845 

Corporate securities:

 

 

 

 

 

Fixed income securities

 

391,981 

 

 

244,535 

Equity securities

 

39,829 

 

 

19,859 

State and municipal securities

 

162,058 

 

 

111,288 

 

$

746,213 

 

$

474,951 

Trading securities sold, but not yet purchased

 

 

 

 

 

U.S. government securities

$

148,876 

 

$

109,776 

U.S. government agency securities

 

8,464 

 

 

954 

Corporate securities:

 

 

 

 

 

Fixed income securities

 

173,157 

 

 

149,460 

Equity securities

 

39,284 

 

 

6,060 

State and municipal securities

 

105 

 

 

583 

 

$

369,886 

 

$

266,833