Nasdaq Cleans Up Old Rules in Equities Trading Book
Published Date: 4/3/2026
Notice
Summary
Nasdaq is cleaning up its rulebook by removing old, outdated rules about trading tools that were replaced in 2021. This change affects traders and firms using Nasdaq’s systems but won’t cost anyone extra or change how trading works. The update is effective immediately, making Nasdaq’s rules clearer and easier to follow.
No Economic Impacts Identified for this Document
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
Department and Agencies
Related Federal Register Documents
2026-07651, Concept Release on Consolidated Audit Trail and Other Audit Trails and Data Sources
The SEC wants your thoughts on how it tracks stock market trades using the Consolidated Audit Trail and other data tools. They’re thinking about updating rules to keep up with new tech, privacy, and security needs, and to make sure the system is fair and cost-effective. If you’re involved in the stock market or data tracking, speak up by June 22, 2026, because changes could affect how audits are done and funded.
2026-09742, Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Its Fees Schedule To Adopt a New Fee Code for Market-Maker Complex Orders Executed on the Complex Order Book That Add Liquidity in Penny Program Securities and To Amend Its Orders Submitted With a Designated Give Up Program
Starting May 1, 2026, Cboe BZX Exchange is updating its fees to add a new code for Market-Maker Complex orders that add liquidity in penny stocks. They’re also tweaking rules for orders using a special Give Up program. These changes mainly affect market makers and traders using complex orders, aiming to make fees clearer and trading smoother.
2026-09745, Self-Regulatory Organizations; MEMX LLC; Notice of Filing and Immediate Effectiveness of a 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 May 1, 2026 Through December 31, 2026
Starting May 1, 2026, MEMX is charging industry members a tiny fee of $0.000001 per share to help cover the costs of the Consolidated Audit Trail (CAT) system through the end of the year. This fee supports tracking stock trades better and will show up on invoices starting June 2026. If you’re a broker or part of the trading world, get ready to chip in for smoother market oversight!
2026-09728, Self-Regulatory Organizations; MEMX LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Establish Fees for Industry Members Related to Certain Historical Costs of the National Market System Plan Concerning the Consolidated Audit Trail
MEMX is setting new fees for industry members to cover leftover historical costs from the National Market System’s Consolidated Audit Trail, which tracks stock trades. These fees, called Historical CAT Assessment 1A, will collect about $39 million that wasn’t billed before. The change is effective immediately, so affected members should get ready to pay soon!
2026-09736, Self-Regulatory Organizations; Nasdaq PHLX LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Establish Fees Related to Certain Historical Costs of the National Market System Plan Governing the Consolidated Audit Trail
Nasdaq PHLX is setting new fees for industry members to cover leftover historical costs from the National Market System Plan for the Consolidated Audit Trail. These fees, called Historical CAT Assessment 1A, will collect about $39 million for costs before 2022 that weren’t billed before. The fees start right away and will be charged per share traded, helping keep the audit trail running smoothly.
2026-09734, Self-Regulatory Organizations; Nasdaq Texas, LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Establish Fees Related to Certain Historical Costs of the National Market System Plan Governing the Consolidated Audit Trail
Nasdaq Texas is setting new fees to cover leftover historical costs from the National Market System Plan for the Consolidated Audit Trail. Industry members who trade on the exchange will pay these fees starting soon to help cover about $39 million in past expenses not yet billed. This update keeps the system fair and funded without surprises!
Previous / Next Documents
Previous: 2026-06469, Self-Regulatory Organizations; BOX Exchange LLC; Notice of Filing of Proposed Rule Change To Amend BOX Rules 5055 (FLEX Equity Options) and 3120 (Position Limits)
BOX Exchange wants to update its rules for special options tied to popular Bitcoin and Ethereum ETFs and trusts. These changes affect traders using FLEX equity options and position limits, aiming to keep things fair and clear as crypto-related products grow. The new rules could impact trading limits and how these options work, with the SEC now asking for public feedback before anything changes.
Next: 2026-06473, Self-Regulatory Organizations; Nasdaq PHLX LLC; Notice of Filing and Immediate Effectiveness of a Proposal To Amend the Exchange's Anti-Internalization Functionality in Equity 4, Rule 3307, and To Extend the Implementation Date of the CORE FIX Order Entry Protocol
Nasdaq PHLX is updating a rule that helps stop trades from accidentally happening within the same firm, which keeps trading costs down for everyone. They’re also pushing back the start date for a new order entry system called CORE FIX. These changes affect traders using Nasdaq PHLX and aim to make trading smoother without extra costs, with the new system launch delayed to give everyone more time to get ready.