CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue
Commissions	$ 120,684	$ 103,079	$ 341,587	$ 295,984
Advisory fees	134,404	121,631	388,835	353,675
Investment banking	77,488	52,185	168,644	131,841
Bank deposit sweep income	28,349	34,875	87,078	106,406
Interest	38,859	38,034	113,245	99,605
Principal transactions, net	14,902	14,364	38,409	42,672
Other	9,752	9,184	27,643	26,896
Total revenue	424,438	373,352	1,165,441	1,057,079
Expenses
Compensation and related expenses	290,222	237,935	756,387	680,375
Communications and technology	25,938	24,602	78,324	73,860
Occupancy and equipment costs	15,971	16,240	47,558	47,604
Clearing and exchange fees	6,850	7,125	21,643	19,747
Interest	22,496	24,103	66,421	66,631
Other	31,326	27,977	89,887	80,172
Total expenses	392,803	337,982	1,060,220	968,389
Pre-tax income	31,635	35,370	105,221	88,690
Income tax provision	9,923	10,862	31,180	28,172
Net income	21,712	24,508	74,041	60,518
Net loss attributable to noncontrolling interest, net of tax	0	0	0	(310)
Net income attributable to Oppenheimer Holdings Inc.	$ 21,712	$ 24,508	$ 74,041	$ 60,828
Earnings per share attributable to Oppenheimer Holdings Inc.
Basic (in dollars per share)	$ 2.06	$ 2.38	$ 7.05	$ 5.87
Diluted (in dollars per share)	$ 1.90	$ 2.16	$ 6.53	$ 5.45
Weighted average shares outstanding
Basic (in shares)	10,519,722	10,332,927	10,502,101	10,355,982
Diluted (in shares)	11,450,346	11,277,865	11,349,801	11,156,536
Period end shares outstanding (in shares)	10,520,549	10,331,401	10,520,549	10,331,401