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Notice Rule

Notice of Filing and Immediate Effectiveness of Proposed Rule Change to Amend Supplementary Material .04 and .05 to IEX Rule 23.150(h) to Change Three of the Variables in the Options Risk Parameter Quote Instability Calculation, Each within the Permitted

National Securities Exchanges, Investors Exchange LLC (IEX)

Public Comments

Submit a Comment on SR-IEX-2026-36

Last Reviewed or Updated: Oct. 6, 2026

Resources

Notice Rule: SEC Issued Version (pdf 271.89 KB)

Exhibit 5

Details

Public Comments Due

Oct. 27, 2026

File Number

SR-IEX-2026-36

Rule Type

Notice

Release Number

34-106559

SEC Issue Date

Oct. 1, 2026

Rules & Regulations

Enforcement & Litigation

Compliance

Notice of Filing and Immediate Effectiveness of Proposed Rule Change to Amend Supplementary Material .04 and .05 to IEX Rule 23.150(h) to Change Three of the Variables in the Options Risk Parameter Quote Instability Calculation, Each within the Permitted

Public Comments

Resources

Details

More in this Section

Notice of Filing and Immediate Effectiveness of Proposed Rule Change to Amend Supplementary Material .04 and .05 to IEX Rule 23.150(h) to Change Three of the Variables in the Options Risk Parameter Quote Instability Calculation, Each within the Permitted

Public Comments

Resources

Details