Today is one of my favorite days, not because it’s the end of the worst week in market history, but because the end-of-day rally created so many trading opportunities for next week (yes, can you believe it?). I’m talking about trading power spikes, one of my favorite patterns. A stock exhibiting a power spike is one that displays an immediate and forceful change in sentiment from the previous day. Whatever the reason, traders instantly changed their minds on the direction of the stock…a very powerful signal indeed.