[mgaunard]

The most deterministic market is Eurex, which is mostly for trading the eurostoxx and the bund.

The CME is also quite deterministic (largest derivative exchange in the world, big names there are the S&P, treasury notes, eurodollar, wti..)

Off-the-shelf best-in-class solutions run at 30ns (see STAC T0). The fastest people are faster than this.