“Sell at former peaks” is an old Wall Street expression. People say this because stocks tend to run into resistance when they rally to a price level that has been a peak. This is due to investor and trader psychology. After a large and rapid move higher, shares of CVS Health Corp (NYSE:CVS) have stalled around the $63.30 level. As you can see on the chart, this was where the stock peaked in July. This is despite the fact that many analysts commented on the benefits of insurers evolving intointegrated healthcare companies. This is why it is our Stock of the Day. Rallies can stall at former peak…