There is an decent comment speculating on why/how as well http://zerohedge.blogspot.com/2009/07/is-case-of-quant-trading-industrial.html#dsq-cite-12186605 http:

There is an decent comment speculating on why/how as well http://zerohedge.blogspot.com/2009/07/is-case-of-quant-trading-industrial.html#dsq-cite-12186605 http://zerohedge.blogspot.com/2009/07/is-case-of-quant-tradi...