Self-Regulatory Organizations; MEMX LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Establish Fees for Industry Members Related to Reasonably Budgeted CAT Costs of the National Market System Plan Governing the Consolidated Audit Trail for 2025
Published Date: 1/6/2025
Notice
Summary
Starting February 2025, MEMX is charging industry members a tiny fee of $0.000022 for every share traded to help cover the costs of the Consolidated Audit Trail (CAT) system. This new fee supports the national effort to track trading activity and keep markets fair and transparent. If you trade shares through MEMX, expect this fee to show up on your monthly bill.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 2 costs, 0 mixed.
New per‑share CAT fee: $0.000022
Starting February 2025, MEMX will charge Industry Members a CAT Fee of $0.000022 for every executed equivalent share. This fee will appear on monthly invoices sent to CAT Executing Brokers based on their executed shares.
First invoice arrives February 2025
CAT Executing Brokers will receive their first monthly invoice for CAT Fee 2025-1 in February 2025, and that invoice will be calculated based on transactions in January 2025. Expect the fee to show up on monthly bills starting in February 2025.
Six‑month fee replacing 2024 rate
CAT Fee 2025-1 is anticipated to be in place for six months and is expected to recover about one‑half of the reasonably budgeted CAT costs for 2025. MEMX intends for this fee ($0.000022) to replace CAT Fee 2024-1, which had a rate of $0.000035 per executed equivalent share.
Personalized for You
How does this regulation affect your finances?
Personalize government policy and PRIA will tell you what this federal register document means for your household, plus every other regulation we track. PRIA reads each provision against your financial profile to show you exactly what matters to your wallet.
Key Dates
Related Federal Register Documents
2026-20724, Notice of Intent To Prepare a Supplemental Environmental Impact Statement for the Sentinel Deployment and Minuteman III Decommissioning and Disposal
The Air Force is updating its plan to replace old Minuteman III missiles with new Sentinel missiles across five states, including Wyoming, Montana, and North Dakota. They’re checking how these changes might affect the environment and want your thoughts during a 30-day comment period starting now. This update could impact local lands and communities, with careful reviews to keep things safe and smart.
2026-20771, Center for Scientific Review; Notice of Closed Meetings
The Center for Scientific Review at the NIH is holding several closed virtual meetings in early November 2026 to review and evaluate grant applications. These meetings protect private info and trade secrets, affecting researchers seeking funding. No direct money changes are announced, but these reviews decide who gets research grants.
2026-20708, Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change Pursuant to IEX Rule 15.110(a) and (c) To Amend the IEX Equities Fee Schedule
IEX is shaking up its fee schedule starting November 1, 2026, by tweaking who gets rebates for adding displayed liquidity and changing rebate amounts. This affects IEX members who trade stocks, giving them new ways to save or earn more on fees. The changes kick in right away after filing, so traders should get ready to adjust their strategies and cash flow.
2026-20710, Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change Pursuant to IEX Rule 15.110(a) and (c) To Modify the Required Criteria To Qualify for the Reduced Incremental Fee
Investors Exchange (IEX) is changing the rules for who can get a discount on certain trading fees. Starting November 1, 2026, members will need to meet new criteria to qualify for the reduced incremental fee, which could save or cost them money depending on their trading activity. This change affects all IEX members and kicks in right away to keep things fair and clear.
2026-20779, Passenger Vehicle and Light Truck Tires From Thailand: Preliminary Results and Rescission, in Part, of Antidumping Duty Administrative Review; 2024-2025
The U.S. Department of Commerce found that tires from Thailand were sold in the U.S. for less than their normal price between July 2024 and June 2025. This means some importers might have to pay extra duties to keep things fair. The review process had some delays due to government shutdowns, but now the preliminary results are out and open for comments.
2026-20763, National Environmental Policy Act Implementing Procedures: Wintertime Oil and Gas Exploration in the National Petroleum Reserve in Alaska Categorical Exclusion
Starting October 9, 2026, the Department of the Interior is making it easier and faster to approve wintertime oil and gas exploration in Alaska’s National Petroleum Reserve by adding a special rule that skips some usual paperwork. This change mainly affects energy companies working in the area and aims to speed up projects while still protecting the environment. No new costs are expected, but the process will be smoother and quicker.
Previous / Next Documents
Previous: 2024-31765, accessiBe; Analysis of Proposed Consent Order To Aid Public Comment
The FTC is taking action against accessiBe for allegedly breaking rules about honest business practices. They’ve proposed a deal that would make accessiBe stop these unfair actions and follow the law. People have until February 5, 2025, to share their thoughts, and this could affect how accessiBe handles its services and possibly its finances.
Next: 2024-31768, Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend FINRA Rule 6897(b) (CAT Cost Recovery Fees) To Implement a Consolidated Audit Trail Cost Recovery Fee
Starting January 1, 2025, FINRA is updating its rules to charge a new fee that helps cover the costs of the Consolidated Audit Trail (CAT), a system that tracks trading activity. This change affects financial firms that use FINRA’s services and will help FINRA recover its share of CAT expenses for the year. The fee kicks in immediately and aims to keep the system running smoothly without surprises.