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Take a look at the VIX from 2009 until today and you'll understand why you stopped making money.


http://finance.yahoo.com/echarts?s=%5EVIX+Interactive#symbol...;

very interesting, a spike in sept-dec 2009 that roughly follows his PNL...


Without a ton of volatility, any homebrew HFT is going to lose to commissions and spread. Basically, he was trading in one of the few periods where is was possible to make money.




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