SIMPLEX TRADING, LLC

Position in CME — Cme Group Inc.

CIK 1488542 CHICAGO, IL

Position in CME

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$904,066

-$1,688,085 QoQ

Shares Held

3,061

-72.6% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2023

5 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Financial Services · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $1,665,287 across 5 Financial Data & Stock Exchanges names. CME ranks #1 (54.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CME	Cme Group Inc. This page	3,061	$904,066
2	CBOE	Cboe Global Markets, Inc.	1,207	$339,251
3	MSCI	MSCI Inc.	620	$334,186
4	TRU	TransUnion	1,264	$87,456
5	DTCX	Datacentrex, Inc.	153	$328

5 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$904,066	3,061	-72.6%	Shares	Sole	2026-05-14
2024-12-31	$2,592,151	11,162	-13.6%	Shares	Sole	2025-02-11
2024-03-31	$2,780,470	12,915	-61.8%	Shares	Sole	2024-04-25
2023-12-31	$7,117,648	33,797	+311.5%	Shares	Sole	2024-02-02
2023-09-30	$1,644,406	8,213	—	Shares	Sole	2023-11-01
No filing history on record for this holder in this stock.