Market regulation · 14/03/2025

Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend IEX Rule 11.190 To Retire One of the Two Proprietary Mathematical Calculations the Exchange Utilizes To Assess the Probability of an Imminent Change to the Protected Quotation

The Investors Exchange LLC has filed a proposed rule change to amend IEX Rule 11.190, which aims to retire one of the two proprietary mathematical calculations used to assess the probability of an imminent change to the protected quotation.