Key Takeaways Micron shares fell more than 5% in premarket trading Thursday after the chipmaker posted quarterly results and revenue guidance that came in below Wall Street’s lofty expectations. The stock price reversed last Thursday on above-average volume to form a bearish wide-ranging day, a particularly volatile trading session that can warn of a major trend reversal. Micron shares made a higher high last week, but the relative strength index made a shallower high, creating a bearish divergence between ...