nav sarao's story was all i needed to know how corrupt the US exchanges and regulators are.
1. the guy is constantly frontrunned by prop firms, which btw the CME can't possibly not know. the CME has algorithms that detect this kind of stuff so they were clearly fine with prop firms doing it.
2. he gets frustrated so he spoofs them.
3. CME tells Nav to stop but Nav tells the CME to fuck off.
4. 2010 flash crash happens but SEC investigation + research done by American academics prove the 2010 flash crash was NOT caused by Nav, but instead due to algos being triggered by Waddell & Reed Financial's large hedge order earlier that day.
5. US needs to find a scapegoat so they pin it all on some brown guy trading in his mom's basement all the way across the atlantic ocean in the UK
6. his sentencing for CRIMINAL charges is now coming up in a few months in Illinois federal court.
it's no coincidence you often see senior managment in chicago prop firms like for example, Jump trading, have people who leave to join the CME board and return. there's a revolving door relationship there similar to the one between firms like Williams & Connolly and Main Justice (DOJ).
quoting george carlin, it's a big club, and you ain't in it.
that being said, you probably only need to worry about this sort of thing if you're daytrading and clipping huge # of contracts. if you're trading daily/weekly timeframes, frontrunning or stop-hunting applies less to you.