Trader Arrested in Manipulation That Contributed to 2010 ‘Flash Crash’

apparently acted alone, and was responsible for 1 in 5 'sell' orders the day of the crash

must have had some tech skill to get his operation running. i suppose it's not surprising this came from a lone trader, as this behavior would have been caught at an organization.

HFT and You ; Since the flash crash, there have been a number of other disruptive events that have unnerved the public, including the implosion of Knight Capital, after a faulty algorithm caused the company to lose more than $400 million in under an hour. Tax shelter for some (.5%) the under rule 1244.