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Business Segment and Geographic Information (Tables)
6 Months Ended
Jun. 30, 2024
Segment Reporting [Abstract]  
Schedule of Information Regarding Revenue by Client Sector
Information regarding revenue by client sector is as follows:
Three Months EndedSix Months Ended
June 30, June 30,
2024202320242023
(dollars in thousands)
Revenues
Institutional$245,581 $183,828 $492,918 $382,680 
Wholesale94,272 73,329 191,483 149,429 
Retail35,871 30,680 71,040 62,543 
Market Data29,227 22,776 58,249 45,210 
Total revenue404,951 310,613 813,690 639,862 
Operating expenses
242,457 194,278 483,518 400,961 
Operating income
$162,494 $116,335 $330,172 $238,901 
Schedule of Revenue and Long-Lived Assets by Geographic Location
The following table provides revenue by geographic area:
Three Months EndedSix Months Ended
June 30, June 30,
2024202320242023
(dollars in thousands)
Revenues
U.S.$252,144 $200,919 $506,242 $409,621 
International152,807 109,694 307,448 230,241 
Total revenue$404,951 $310,613 $813,690 $639,862 
The following table provides information on the attribution of long-lived assets by geographic area:
June 30,December 31,
20242023
(dollars in thousands)
Long-lived assets
U.S.$4,043,795 $3,990,070 
International27,570 20,348 
Total$4,071,365 $4,010,418