ONe of the most reliable indicators for identifying a coming correction, or that a rally is for real, is to look at how the market does the first hour and last hour of the trading day. when it consistently goes up the last hour, and often down in the first hour, that is extremely bullish, as the weak hands dump in the morning, and the strong hands buy at the end.
Opposit for going up in the morning, down in the afternoon. That was the norm in sept-Nov 2008, with lots of moves inbetween.