The bulls are definitely back in charge according to the weekly AAII Sentiment Survey. The number of investors who said they were bullish increased to 43.9%, up 13.1 points from last weeks reading of 30.8%. Conversely the number of bears decreased to 31.6%, down from 42.2%. You can see how quickly sentiment changes these days. Two weeks ago investors were quite bearish with only 20% of respondents saying they were bullish, but add in a few positive days and you get a stampede back into the bullish column.
Here is a 3 month chart
Here is a 2 yr chart
Here is a chart which compares the AAII Bearish Sentiment to the SP 500
Black Swan Insights