MEMX adopts new fee schedule, adjusts rebates for options trades

On August 31, 2026, MEMX LLC filed a proposed rule change with the Securities and Exchange Commission to amend its Options Fee Schedule. The filing, identified as Release No. 34-106330; File No. SR-MEMX-2026-30 and published in the Federal Register (Vol. 91, No. 177, FR Doc No. 2026-18814), proposes that the changes become effective on September 1, 2026.

The proposal increases the standard transaction rebate for Customer-capacity executions that add liquidity in Non-Penny options from $1.17 to $1.19 per contract. It also reduces the rebate for Market Maker-capacity executions that add liquidity in Penny options from $0.45 to $0.43 per contract.

In addition to these rebate adjustments, MEMX seeks to adopt a Volume Tier 1 structure that would provide an enhanced rebate for Penny-option liquidity added by Customer-capacity members meeting specified volume thresholds. The Exchange frames the changes as a means to encourage additional order flow, deepen liquidity, and support price discovery on its platform amid a highly competitive options market where it holds roughly 3.2% of market share.

The Commission is publishing this notice to solicit comments from interested parties. Comments must reference the docket numbers listed above and be submitted in accordance with the procedures set forth in Rule 19b-4.