NYSE Arca Tweaks Auction Prices for Smoother Stock Trades
Published Date: 5/9/2025
Notice
Summary
NYSE Arca is updating its auction rules to bring back a key part about how the best price for matching shares is shown during auctions. This change affects traders using the Exchange’s auction system and kicks in right away, helping everyone see clearer price info and potentially trade smarter. No extra costs or delays—just smoother, sharper auctions starting now!
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
Restores Indicative Match Price Rounding
The Exchange restored Rule 7.35-E(a)(8)(F), which says that unless the Indicative Match Price is based on the midpoint of an Auction NBBO, if the Indicative Match Price is not in the minimum price variation (MPV) for the security it will be rounded to the nearest MPV price. This change restores text that was inadvertently omitted and makes clear how the Exchange shows the best match price in auctions.
Rule Change Effective Immediately Upon Filing
The Exchange filed the proposed rule change on April 22, 2025, and the Commission waived the usual 30-day operative delay so the proposal became effective immediately upon filing. The Commission may summarily suspend the change at any time within 60 days of the filing.
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