Pushback from Citadel on Options Trading with Speed Bumps Proposal from IEX

Virtu (co-founded by Doug Cifu and Vincent Viola)  is declaring support for IEX launching a new US options exchange (planned for Q1 2026) which will introduce a 350ms delay on trades - a speed bump to level the playing field and prevent ultra-high-frequency players sweeping up all the profits.  Citadel, as well as the Securities Industry and Financial Markets Association, has hit back saying it could affect price discovery and market dynamics.