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

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

SCHEDULE OF CONCENTRATION OF CREDIT RISK

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2021		2020		2021
Market maker:
Citadel Securities, LLC	36	%	14	%	34	%	21	%
Tai Mo Shan Limited(1)	1	%	29	%	2	%	20	%
Entities affiliated with Susquehanna International Group, LLP(2)	21	%	9	%	20	%	11	%
Entity affiliated with Jane Street Group	1	%	12	%	1	%	9	%
Entities affiliated with Wolverine Holdings, L.P.(3)	8	%	8	%	10	%	8	%
All others individually less than 10%	10	%	7	%	9	%	11	%
Total as percentage of total revenue:	77	%	79	%	76	%	80	%

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(1)Member of Jump Trading Group

(2)Consists of Global Execution Brokers, LP and G1X Execution Services, LLC

(3)Consists of Wolverine Execution Services, LLC and Wolverine Securities LLC