I got some of that trade, too. :) Fat finger trades like that happen all the time in all markets. People fuck up with probability 1. Now, automation of trades

I got some of that trade, too. :) Fat finger trades like that happen all the time in all markets. People fuck up with probability 1. Now, automation of trades to look for these errors is a great idea... until you get one that isn't an error (say, an earthquake in Kobe).