CONDENSED CONSOLIDATED INCOME STATEMENTS (unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
Revenue
Commissions		$ 128,341	$ 110,878
Advisory fees		141,718	128,803
Investment banking		97,720	47,623
Bank deposit sweep income		26,118	30,075
Interest		37,531	36,369
Principal transactions, net		10,787	8,975
Other		2,880	5,102
Total revenue		445,095	367,825
Expenses
Compensation and related expenses		296,001	227,091
Communications and technology		26,566	26,182
Occupancy and equipment costs		15,775	16,009
Clearing and exchange fees		6,361	7,752
Interest		18,686	21,396
Other (1)	[1]	108,707	28,019
Total expenses		472,096	326,449
Pre-tax (loss) income		(27,001)	41,376
Income tax (benefit) provision		(6,432)	10,721
Net (loss) income		(20,569)	30,655
Net income attributable to non-controlling interest, net of tax		9	0
Net (loss) income attributable to Oppenheimer Holdings Inc.		$ (20,578)	$ 30,655
(Loss) Earnings per share attributable to Oppenheimer Holdings Inc.
Basic (in dollars per share)		$ (1.93)	$ 2.93
Diluted (in dollars per share)		$ (1.93)	$ 2.72
Weighted average shares outstanding
Basic (in shares)		10,642,909	10,465,771
Diluted (in shares)		10,642,909	11,277,939
Period end shares outstanding (in shares)		10,708,005	10,525,495
Common stock, issued (in shares)		10,708,005	10,525,495

[1] Includes an accrual of $70.0 million related to the settlement of the “cash sweep” program litigation, see Note 13