It seems yesterday's FOMC needed some extra digesting by market participants causing significant intra day swings to either side. Also, every poll in the UK about a possible Brexit will keep adding more volatility for the week to come. Since the polls do not call a clear winner yet for either camp, we're in for a while ride I suspect. It's my guess that the drop we're seeing lately is purely due to that. My guess is that the UK will choose to stay in the EU, although probably by a small margin and that the stock market will sky rocket afterwards with that major uncertainty out of the way. Once again, these are historical times. For trading the S&P 500 tomorrow, Friday, June 17th, the Greed and Fear indicator is expecting a lower close.