CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
REVENUE
Commissions	$ 103,079	$ 83,933	$ 295,984	$ 259,174
Advisory fees	121,631	107,969	353,675	310,214
Investment banking	52,185	37,411	131,841	95,354
Bank deposit sweep income	34,875	42,304	106,406	135,273
Interest	38,034	26,430	99,605	78,691
Principal transactions, net	14,364	16,892	42,672	46,635
Other	9,184	(2,272)	26,896	15,195
Total revenue	373,352	312,667	1,057,079	940,536
EXPENSES
Compensation and related expenses	237,935	195,684	680,375	589,200
Communications and technology	24,602	22,590	73,860	67,813
Occupancy and equipment costs	16,240	17,281	47,604	49,622
Clearing and exchange fees	7,125	6,051	19,747	18,241
Interest	24,103	19,744	66,631	50,353
Other	27,977	29,730	80,172	136,369
Total expenses	337,982	291,080	968,389	911,598
Pre-tax income	35,370	21,587	88,690	28,938
Income tax provision	10,862	7,808	28,172	10,262
Net income	24,508	13,779	60,518	18,676
Net loss attributable to noncontrolling interest, net of tax	0	(82)	(310)	(403)
Net income attributable to Oppenheimer Holdings Inc.	$ 24,508	$ 13,861	$ 60,828	$ 19,079
Earnings per share attributable to Oppenheimer Holdings Inc.
Basic (in dollars per share)	$ 2.38	$ 1.32	$ 5.87	$ 1.75
Diluted (in dollars per share)	$ 2.16	$ 1.21	$ 5.45	$ 1.62
Weighted average shares outstanding
Basic (in shares)	10,332,927	10,519,431	10,355,982	10,874,055
Diluted (in shares)	11,277,865	11,440,229	11,156,536	11,746,337
Period end shares outstanding (in shares)	10,331,401	10,388,898	10,331,401	10,388,898