I've posted a couple of summaries about this (look back over my recent posts). Basically the guy is an utter chopper. He uses a martingale system to get a massive win rate, and scoops a few hundred bucks per time. Unfortunately, the day it went wrong he kept buying (I think) TF until he was carrying about 850 cars. At that point the broker pulled the plug.
WTF this is supposed to be God only knows. He has no risk control whatever, but he charges people to watch him "trade".
By the way, this fiasco was opened with a single contract. He actually went from 1 to 850
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There are some threads about it over on ET, one called Robert Hoffman, one called something else (I think it's the name of the two guys that actually run the room that he works from). If you can't find them let me know, I'll try to dig out the links for you. It's worth a read, pretty funny stuff.