Rule lifecycle · DOCKET:File No. 4-631
Joint Industry Plan; Notice of Filing and Immediate Effectiveness of Amendment to the Plan To Address Extraordinary Market Volatility To Add Texas Stock Exchange LLC as a Participant
Securities and Exchange Commission — observed across 3 documents over 45 days. Use the source documents below before deciding whether this affects your business.
In plain English
Federal stock market regulators add Texas Stock Exchange to the official system that steps in to prevent sudden market collapses and wildly swinging stock prices. If your broker sends your stock trades through this new Texas exchange, you might get better prices and know your trades have extra protection against market crashes.
First seen
May 15, 2026
Last seen
Jun 29, 2026
Latest stage
Notice
PRORULE → RULE
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Stage timeline
Notice·May 15, 2026·91 FR 27995
Joint Industry Plan; Notice of Filing and Immediate Effectiveness of the Twenty-Sixth Amendment to the National Market System Plan To Address Extraordinary Market Volatility To Reflect the Name Change of Nasdaq BX, Inc. to Nasdaq Texas LLC
#2026-09748
Notice·Jun 4, 2026·91 FR 33774
Joint Industry Plan; Notice of Filing of the Twenty-Seventh Amendment to the National Market System Plan To Address Extraordinary Market Volatility To Establish Temporary Price Band Protections in Overnight Trading
#2026-11147
Notice·Jun 29, 2026·91 FR 39142
Joint Industry Plan; Notice of Filing and Immediate Effectiveness of Amendment to the Plan To Address Extraordinary Market Volatility To Add Texas Stock Exchange LLC as a Participant
#2026-13013