IEX adopts rule to standardize options strike-price ranges

On September 23, 2026, Investors Exchange LLC (IEX) filed with the Securities and Exchange Commission a proposed rule change identified as File No. SR-IEX-2026-35, Release No. 34-106515 (FR Doc No. 2026-20073). The filing seeks adoption of Rule 20.140A, which would apply uniform objective standards to the range of options series exercise (strike) prices available for trading on IEX.

The rule codifies select provisions of the Options Listing Procedures Plan (OLPP) as amended by Amendment 3, which established uniform strike-price standards as a quote-mitigation strategy. IEX, having become a Plan Sponsor of the OLPP in August 2026, aims to place the relevant series-selection and strike-setting parameters directly into its options rules.

IEX designates the filing as "non-controversial" under Section 19(b)(3)(A) of the Act and requests immediate effectiveness upon filing, consistent with the Commission's practice for similar filings. The proposed rule mirrors essentially identical rules at other participant exchanges and introduces no provisions beyond those already approved in the amended OLPP.

The Exchange states that the rule imposes no unnecessary burden on competition, asserting that alignment with the OLPP promotes regulatory clarity, consistency, and investor protection while preserving competitive parity among options markets.

The full text of the proposed rule change is available on IEX's website at https://www.iexexchange.io/resources/regulation/rule-filings and at the Exchange's principal office.