MEMX Lowers Some Stock Trading Rebates
Published Date: 6/15/2026
Notice
Summary
MEMX is changing its fees starting June 1, 2026, by lowering some rebates for certain stock trades that add liquidity, especially for hidden and price-improved orders. These updates affect traders and members who use MEMX, meaning they might earn a bit less back on some trades. The goal? Keep things fair and balanced while keeping the exchange running smoothly.
Analyzed Economic Effects
7 provisions identified: 1 benefits, 6 costs, 0 mixed.
Lower rebate for price‑improved adds
MEMX will reduce the base rebate for executions of orders that add liquidity and received price improvement ("Added Price Improved Volume") from $0.0025/share to $0.0010/share for securities priced at or above $1.00 per share, effective June 1, 2026. The Exchange is not changing the rebate for such executions in securities priced below $1.00 per share.
Lower rebate for non‑midpoint non‑displayed adds
MEMX will reduce the base rebate for executions that add non-displayed liquidity but are not midpoint peg orders ("Added Non‑Midpoint Non‑Displayed Volume") from $0.0025/share to $0.0020/share for securities priced at or above $1.00 per share, effective June 1, 2026. The rebate for securities priced below $1.00 per share is unchanged.
Lower rebate for midpoint non‑displayed adds
MEMX will reduce the base rebate for executions of Midpoint Peg orders that add non-displayed liquidity ("Added Midpoint Non‑Displayed Volume") from $0.0025/share to $0.0020/share for securities priced at or above $1.00 per share, effective June 1, 2026. No change is proposed for securities priced below $1.00 per share.
New non‑display Tier 2 rebate option
MEMX is adding a Non‑Display Add Tier 2 that will provide an enhanced rebate of $0.0025/share for executions of Added Midpoint Non‑Displayed Volume and Added Non‑Midpoint Non‑Displayed Volume to Members that achieve a Non‑Displayed ADAV of at least 1,000,000 shares in a month. This new tier is part of the Fee Schedule changes effective June 1, 2026.
Removal of Display‑Price Sliding Tier 1
MEMX will eliminate the Display‑Price Sliding Tier 1, which currently provided an enhanced rebate for Added Price Improved Volume when a Member achieved Added Price Improved ADAV (excluding Retail Orders) of at least 5,000,000 shares. The elimination takes effect June 1, 2026 and the Exchange will no longer provide that tiered enhanced rebate.
Smaller Tape A quoting additive rebate
MEMX will reduce the additive rebate under the Tape A Quoting Tier from $0.0002/share to $0.0001/share for qualifying executions of Added Displayed Volume in Tape A securities priced over $1.00, effective June 1, 2026. The qualification criteria (NBBO Time ≥ 25% in an average of at least 500 Tape A securities per trading day) remain unchanged.
Smaller Tape C quoting additive rebate
MEMX will reduce the additive rebate under the Tape C Quoting Tier from $0.0002/share to $0.0001/share for qualifying executions of Added Displayed Volume in Tape C securities priced over $1.00, effective June 1, 2026. The qualification criteria (NBBO Time ≥ 50% in an average of at least 500 Tape C securities per trading day) remain unchanged.
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