Considering that users in this thread might be interested in trading software, let me add this link I posted yesterday: http://news.ycombinator.com/item?id=504

Considering that users in this thread might be interested in trading software, let me add this link I posted yesterday: http://news.ycombinator.com/item?id=5041040 http://news.ycombinator.com/item?id=5041040 "Markets too complex for high frequency trading software"