Stock Exchange Ditches Chicago, Embraces Texas in Data Rule Refresh
Published Date: 11/20/2025
Notice
Summary
The Long-Term Stock Exchange (LTSE) is updating its rules to add a new market data source called 24X and to rename NYSE Chicago to NYSE Texas. This change helps keep LTSE’s data info fresh and accurate for traders and investors. The update is effective immediately, so everyone using LTSE’s data should take note now!
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
LTSE adds 24X as primary market data
The Long-Term Stock Exchange (LTSE) will use 24X National Exchange LLC ("24X") as its primary securities information processor (SIP) data source for order handling, order execution, order routing, and regulatory compliance. LTSE filed this change on September 26, 2025, and the Commission made the rule operative upon filing; 24X announced a first-stage launch date of September 29, 2025. LTSE will not maintain a secondary data source for 24X.
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