FINRA has requested trading strategies and in some cases algorithms from high frequency traders in an interesting (and on my part unexpected) move. Is this the end of HFT?
http://www.reuters.com/article/2011/09/01/us-financial-regulation-algos-idUSTRE7806J420110901
http://www.reuters.com/article/2011/09/01/us-financial-regulation-algos-idUSTRE7806J420110901