Learn about MEMX, a member-focused securities exchange with a mission.

Discover opportunities to help create the exchange of the future, today.

Access current and historical volume and market share information.

MEMX is a U.S. equities exchange that trades over 7,500 symbols each day with broad retail participation across Tape A, B and C. The exchange has over 65 members, with a broad mix of participants trading daily, including banks, institutions, retail brokers, and market makers.

Watch experts from our member firms discuss market trends and issues with our CEO, Jonathan Kellner.

Read our latest insights, commentary, exchange highlights, press releases, and more.

Meet our mix of veteran exchange experts and new-generation trading and technology specialists.

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Members Exchange (MEMX) announced today the appointment of Jonathan Kellner as its Chief Executive Officer, effective immediately.