24 Exchange

Apex Fintech Solutions

Architect Financial

Axos Clearing

Baird

Bank of America Securities

BIDS Trading

Blue Ocean Technologies

BMO

BOX Options

Broadridge Financial Solutions

Canaccord Genuity Group

Canadian Securities Exchange

Canadian STA

CAPIS

Cboe Global Markets

Chicago Trading Company

Citadel Securities

Citi

Clear Street

Clearpool

Coalition Greenwich

Dallas STA

DASH

Davis Wright Tremaine

Denver STA

DTCC

ETF Global

Eventus

Fidelity Capital Markets

Financial Information Forum

FlexTrade

Flow Traders

Forefront Communications

Grayscale

Group One Trading

GTS Securities

Guzman & Company

Hudson River Trading

IEX Exchange

IMC

Instinet

IntelligentCross

Invesco

ION

Jane Street

Jefferies

JonesTrading

KeyBanc Capital Markets

Kezar Markets

LiquidityBook

Liquidnet

MCAP

MEMX

MIAX Exchange Group

Minnesota STA

Morgan Stanley

Nasdaq

n-Tier

NYSE

Old Mission Markets

OCC

Oppenheimer

Optiver

OTC Markets Group

Paxos

Piper Sandler

Pragma

PureStream

Refinitiv

Roberts & Ryan

Robinhood

Rosenblatt Securities

S3

Siebert, Williams Shank & Co.

Simplex Trading

STA Connecticut

STA New York

STA St. Louis

STA Wisconsin

State Street Global Advisors

StoneX Group

Susquehanna

TD Cowen

TMX Group

Tradeweb

Tourmaline Partners

Two Sigma Securities

UBS

Walleye Capital

Webull

Wells Fargo Securities

WEX

Williams & Jensen

Virtu Financial

XTX Markets