You are correct. Felix Salmon comments: http://blogs.reuters.com/felix-salmon/2012/08/06/chart-of-the-day-hft-edition/ http://blogs.reuters.com/felix-salmon/201

You are correct. Felix Salmon comments: http://blogs.reuters.com/felix-salmon/2012/08/06/chart-of-the-day-hft-edition/ http://blogs.reuters.com/felix-salmon/2012/08/06/chart-of-th... > in 2008, a pattern starts to emerge: a big spike right at the close, at 4pm, which is soon mirrored by another spike at the open. This is the era of traders going off to play golf in the middle of the day, because nothing interesting happens except at the beginning and the end of the trading day. But it doesn’t last long.