It's primarily used for trading research and surveillance, not live trading. And I've never heard of anyone running it without an OS.
kOS is in development though current status is unknown.
(https://gist.github.com/chrispsn/da00835bb122c42f429a084df83...)
heh
For those curious, what they're actually using is FPGAs and custom silicon.
It's primarily used for trading research and surveillance, not live trading. And I've never heard of anyone running it without an OS.