Micron upgrade, call activity, and ascending triangle breakMicron (MU) got an upgrade to "strong buy" over the weekend from Zack's, the best-performing analytics firm. It also got some huge options volume today, targeting $49 and $55 per share. That's probably on the strength of both the Zack's upgrade and the stock's ascending triangle break. The triangle break implies an upside of about $6 per share from the current level.