The evidence that buyers are returning to the S&P 500 is the green candle that occurred on Thursday. In this type of market movement is it sellers that entered the market over the last 2 days taking profit. Has this market gotten cheap enough that new buyers are willing to enter, as well. It is most likely a combination of both, we have fundamental data coming out on Friday that could cause tremendous volatility up or down. When the smoke clears, we will have clues about the confidence the market has going into the weekend.