Inside the Den of Opposition to Gensler's Market Rules

Also, Barr speaks on crypto, SEC updates record-keeping requirements for brokers

The Security Traders Association annual market structure conference was in full swing today – and it’s a hotbed of (wonky) opposition to Gary Gensler’s plans for overhauling stock trading rules. Still, there weren’t many fireworks until Virtu CEO Doug Cifu took the stage, calling the SEC chief’s June speech that laid out the possible market changes “a d…