MEMX Cuts Fees for Market Audit Trail Expenses
Published Date: 7/8/2025
Notice
Summary
Starting July 1, 2025, MEMX is setting a new, lower fee for industry members to help cover the costs of the Consolidated Audit Trail system. Brokers will pay $0.000009 per share traded, with the first bills arriving in August for July’s trades. This fee will last six months and replaces the previous, higher fee to keep things fair and budget-friendly.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 2 costs, 0 mixed.
Budget and Cost Allocation Behind Fee
The Updated 2025 CAT Budget used to set the fee shows Budgeted CAT Costs for July–December 2025 of $60,726,412. The filing says CEBBs collectively are responsible for one-third ($20,242,137.33) and CEBSs collectively are responsible for one-third ($20,242,137.33), with Participants covering the remaining one-third; the un-divided Fee Rate before the one-third allocation was $0.00002651641828376661 per executed equivalent share.
Brokers Pay New Lower CAT Fee
Starting July 1, 2025, industry members acting as CAT Executing Brokers (CEBBs and CEBSs) will be charged $0.000009 per executed equivalent share for the Consolidated Audit Trail. The first invoices for this fee will be issued in August 2025 for trades executed in July 2025, and this six-month fee replaces the prior CAT Fee 2025-1 rate of $0.000022 per share.
Firms May Pass Fee to Clients
The filing states that CEBBs and CEBSs may, but are not required to, pass through their CAT fees to clients; those clients may in turn pass fees to others until the fee is imposed on the account that executed the transaction. That means retail and institutional trading customers could see the fee passed along on trade-related charges.
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