A lot of the activity did trigger circuit breakers (https://www.sec.gov/newsroom/press-releases/2012-2012-151htm), but a lot of the trades weren't far enough from normal to invalidate. Presumably exchanges don't want to normalize "if your algorithm is shitty we'll give your money back"
alt Hacker News
A lot of the activity did trigger circuit breakers (https://www.sec.gov/newsroom/press-releases/2012-2012-151htm), but a lot of the trades weren't far enough from normal to invalidate. Presumably exchanges don't want to normalize "if your algorithm is shitty we'll give your money back"