Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased (Tables)

6 Months Ended

Jun. 30, 2011

Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased

Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased

	September 30,2011		December 31, 2010
Trading securities owned:
U.S. government agency securities	$	71,333	$	86,882
U.S. government securities		12,202		9,038
Corporate securities:
Fixed income securities		264,623		221,145
Equity securities		40,886		46,877
State and municipal securities		137,400		80,228
	$	526,444	$	444,170
Trading securities sold, but not yet purchased:
U.S. government securities	$	109,568	$	131,561
U.S. government agency securities		0		664
Corporate securities:
Fixed income securities		129,226		61,026
Equity securities		33,071		6,800
State and municipal securities		325		89
	$	272,190	$	200,140