Federal Register #SR-IEX-2026-16

SEC Notice: IEX Proposes Adding Texas Stock Exchange to Routing and Market Data Rules

This notice concerns a proposed rule change by Investors Exchange LLC (IEX) regarding its trading and market data practices: - Government buyer: Securities and Exchange Commission (SEC) - Organizations involved: - Investors Exchange LLC (IEX) - Texas Stock Exchange (TXSE) (subject of rule change) - No products or services are being procured; this is a regulatory notice - Proposal details: - Amend IEX Rules 2.220(a)(7) and 11.410(a) to add TXSE as an away trading center - Specify that SIP (Securities Information Processor) data will be used as the primary market data source for TXSE - Intended to ensure compliance with Regulation NMS and enhance transparency in IEX's routing and market data practices - No purchase quantities, part numbers, or OEMs are referenced - No unique technical or business requirements beyond regulatory compliance and transparency

Description

This notice pertains to a proposed rule change by Investors Exchange LLC (IEX) to amend its rules to include the Texas Stock Exchange (TXSE) in the list of away trading centers to which IEX routes orders and uses market data sources. The amendments update IEX Rules 2.220(a)(7) and 11.410(a) to incorporate TXSE's planned launch in July 2026, specifying that SIP data will be the primary source for TXSE market data. The changes aim to ensure compliance with Regulation NMS and enhance transparency without altering order handling or routing.

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