Nasdaq GEMX Updates Auction Rules—More of the Same
Published Date: 4/22/2026
Notice
Summary
Nasdaq GEMX is updating how certain auction trades work by letting Market Makers join in more easily to help match orders. This change aims to make trading smoother and could lead to better prices for investors. The new rules kicked in right after filing on April 13, 2026, so traders should watch for quicker, smarter auctions soon.
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Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Market Makers Can Be Solicited in Auctions
On April 13, 2026, Nasdaq GEMX changed rules to allow assigned Market Makers to be solicited as the contra-side in paired electronic auctions (Facilitation Mechanism, Solicited Order Mechanism (SOM), and Price Improvement Mechanism (PIM)). The Exchange says this may expand available liquidity and increase execution and price-improvement opportunities, particularly for retail or smaller Priority Customer orders; the Exchange expects to implement the changes on or before Q3 2026.
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