Nasdaq Quietly Updates Liquidity Order Rules for Traders
Published Date: 2/24/2026
Notice
Summary
Nasdaq ISE is updating its rules for Add Liquidity Orders, which are special orders that help keep the market active by adding new buy or sell offers. This change affects traders using Nasdaq ISE by tweaking how these orders behave, aiming to improve trading fairness and efficiency. The new rules took effect immediately on February 12, 2026, with no extra fees involved.
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Add Liquidity Orders: Day-Only Rule
If you trade on Nasdaq ISE using an Add Liquidity Order, those orders may only have a Time‑In‑Force (TIF) designation of Day as of February 12, 2026. The rule text also clarifies that Add Liquidity Orders may not remove liquidity, may only be submitted when an options series is open for trading, and may not be entered with IOC, GTC, GTD, or OPG TIFs.
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