Stocks don't go up, or down forever....they wiggle. Check the charts for DIA. The 6 moth daily shows a swing point on 1/22 with huge volume. The stock bounced this day, had a large range in price for the day compared to previous days, and closed with positive momemtum. The next day tested the low of 1/22 and failed. It again had a large price range and closed near the high for that day. This was a clear buy signal.
I think we're in a counter-trend bounce that will go to about $130, and then resume to the bearish direction.
Watch the swing points, and volume. They talk to you.