Cboe BZX Amends Fee Schedule to Credit Redundant Ports During Protocol Migration

On September 1, 2026 the Securities and Exchange Commission published a notice that Cboe BZX Exchange, Inc. filed a proposed rule change on August 20, 2026 to amend its fee schedule. The amendment creates an Exchange Order Entry Protocol Migration Program that provides fee credits to members who establish a redundant logical port solely as a backup during an exchange-initiated migration from one BOE protocol version to another.

Under the program, a member must notify the Exchange's Trade Desk that the redundant logical port is intended for backup use, cancel the port within 30 calendar days, and submit a credit request within 30 days of cancellation. If the Exchange confirms that the port was used only for orders or quotes arising from an exchange issue related to the migration, the member receives a credit for the monthly logical-port fees on the invoice for the subsequent billing cycle.

The Exchange asserts that the rule change is consistent with Section 6(b) of the Securities Exchange Act of 1934 and the related anti-fraud, fairness, and market-integrity provisions. It emphasizes that the credit is limited to ports created because of an exchange-driven migration, not ports established for member-initiated changes, and that the 30-day overlap period balances operational risk with administrative clarity.

The notice solicits comments from interested persons, as required by Section 19(b)(1) of the Act and Rule 19b-4. The proposed rule change is effective immediately upon filing, binding all registered broker-dealers admitted to membership in the BZX Options market.