With a gap up and a gap down, the S&P 500 SPDR (SPY) formed an island reversal over the last four days. This is short-term bearish, but not enough to affect the longer trend, which is still up. To emphasize the short-term nature of this reversal, I am going to start with a 30 minute bar chart. The Raff Regression Channel defines the short-term uptrend extending up from April 1st to April 16th. SPY gapped up on April 15th, held this gap for two days, and then gapped down on April 17th. The blue zone represents a price island above both gaps.