There are some interesting links here: http://spectrum.ieee.org/riskfactor/computing/it/new-insights-into-knight-capital-trading-snafu http://spectrum.ieee.org

There are some interesting links here: http://spectrum.ieee.org/riskfactor/computing/it/new-insights-into-knight-capital-trading-snafu http://spectrum.ieee.org/riskfactor/computing/it/new-insight... I had initially heard that the test program was released to production causing the system to take the wrong side of every trade, but I don't think it was ever confirmed.