OPR and Other Market Structure Hot Buttons for 2026

Mar. 11, 2026

Episode 79 of Bid Out takes a look at the recent industry debate surrounding the removal of the Order Protection Rule (OPR) and the related policies that will be impacted by this change. The United States Securities and Exchange Commission (SEC) is poised to eliminate a rule that is at the core of current equity market structure. To understand the effects, we are joined by two industry experts, Mett Kinak from T. Rowe Price and John Ramsay from IEX Exchange. We explore what rules will change (and need to change) in a no-OPR world, whether the industry needs access fee caps and what is the future of the National Best Bid and Offer (NBBO). The two banter back and forth on new Alternative trading systems (ATSs) for trading equity tokens and how tradfi and defi can co-exist in trading equities. They finish up with a discussion on the need for strong Prediction Markets regulation.

Chapters:
4:30 The Importance of Roundtables and Biggest Surprise from OPR Event in Austin
9:40 Key Themes from Austin – Access Fee Caps and Future of the NBBO
18:10 Will Tick Size and Access Fee Caps Proceed as planned in November?
20:39 The Future of the NBBO Post OPR Removal
40:34 New ATSs for Tokenization and Fusion of Equity Trading in TradFi and DeFi
54:48 Prediction Markets Regulation

This podcast was recorded on March 5, 2026.


Photo of Peter Haynes

Managing Director and Head of Index and Market Structure Research, TD Securities

Photo of Peter Haynes


Managing Director and Head of Index and Market Structure Research, TD Securities

Photo of Peter Haynes


Managing Director and Head of Index and Market Structure Research, TD Securities