frustrating weeks of trading usually involve pennants, and here it looks like we have a nice bear pennant getting ready for a move to around 3550 area. So far it's acting correctly - a whipsaw every few hours, chopping traders up to bits before a larger move, in this case - down.
It could slog around in here some more, but I wouldn't do anything but add shorts if/when it goes a bit higher, as it may do today. Longs had their chance yesterday and today to break out, and they failed both times.
The idea is invalid if price breaches over 3816.