Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUE:
Commissions	$ 120,790	$ 139,582	$ 257,645	$ 277,779
Principal transactions, net	13,313	16,778	24,304	36,957
Interest	13,649	11,198	28,438	20,776
Investment banking	33,717	36,336	62,158	61,520
Advisory fees	50,055	43,984	98,504	86,778
Other	12,994	9,118	26,886	19,361
Total revenue	244,518	256,996	497,935	503,171
EXPENSES:
Compensation and related expenses	160,436	164,304	330,851	322,483
Clearing and exchange fees	6,300	7,823	12,613	14,385
Communications and technology	16,069	16,300	32,008	32,740
Occupancy and equipment costs	18,524	18,262	37,070	36,722
Interest	10,669	6,389	18,443	11,690
Other	30,816	27,772	55,417	53,145
Total expenses	242,814	240,850	486,402	471,165
Profit before income taxes	1,704	16,146	11,533	32,006
Income tax provision	1,266	6,284	5,334	12,780
Net profit for the period	438	9,862	6,199	19,226
Less net profit attributable to non-controlling interest, net of tax	747	660	1,422	856
Net profit (loss) attributable to Oppenheimer Holdings Inc.	$ (309)	$ 9,202	$ 4,777	$ 18,370
Profit per share attributable to Oppenheimer Holdings Inc.:
Basic	$ (0.02)	$ 0.69	$ 0.35	$ 1.38
Diluted	$ (0.02)	$ 0.66	$ 0.34	$ 1.32
Weighted average common shares:
Basic	13,658,720	13,349,551	13,605,020	13,323,410
Diluted	13,937,375	13,899,367	13,929,521	13,890,861
Dividends declared per share	$ 0.11	$ 0.11	$ 0.22	$ 0.22