DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2024

Accounting Policies [Abstract]

Schedule of Concentration of Credit Risk

We derived transaction-based revenues from individual market makers in excess of 10% of total revenues, as follows:

	Three Months Ended  September 30,				Nine Months Ended September 30,
	2023		2024		2023		2024
Market maker:
Citadel Securities, LLC	11	%	14	%	12	%	13	%
All others individually less than 10%	26	%	36	%	28	%	37	%
Total as percentage of total revenue:	37	%	50	%	40	%	50	%