Cboe EDGX Adds 24X Exchange to Its Data Rulebook
Published Date: 9/30/2025
Notice
Summary
Cboe EDGX Exchange is updating its rules to include a new stock exchange called 24X National Exchange, which starts operating on September 29, 2025. This change affects how EDGX shares info about the data it uses for handling and routing orders, making everything clearer and up-to-date. No extra costs or delays are expected, and the update kicks in right away.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
24X Data Added to EDGX Rule
If you use or trade on EDGX, the Exchange will publicly state that it uses 24X National Exchange market data from the Consolidated Quotation System (CQS) / UTP Quotation Data Feed (UQDF) for order handling, routing, execution, and related compliance processes. This update is written into Rule 13.4(a) to reflect 24X Exchange's operation beginning September 29, 2025.
Rule Change Effective Immediately
The SEC waived the usual 30-day delay and made EDGX's proposed amendment to Rule 13.4(a) operative upon filing (filed September 22, 2025). That immediate effectiveness allows EDGX to publicly reflect the inclusion of 24X Exchange data without waiting 30 days.
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