The Members Exchange (MEMX) is an American technology-driven stock exchange founded by its members to serve the interest of its founders and their collective client base. The founding members, which include nine major financial organizations, claim they seek to transform markets around the goals of transparency, innovation, and competition in order to align exchange services with the interests of market participants. It is a member-formed equities trading platform, and competes with the major equity exchanges: NYSE, Nasdaq, and CBOE.
The mission of the exchange is "to increase competition, improve operational transparency, reduce fixed costs and simplify the execution of equity trading in the U.S." Initially after launch, MEMX is not charging for market data or connectivity.[1]
MEMX received approval from the Securities and Exchange Commission in May 2020 to operate as a national securities exchange.[9] The exchange launched on September 21, 2020, listing seven symbols and rolling out additional names through October 2020.[10]
On September 27, 2023, MEMX launched its first U.S. options exchange, MEMX Options.[11]
In February 2024, Blue Ocean Technologies migrated its trading system to a platform provided by MEMX.[12]