By Bret Kenwell Micron stock is rallying after a weaker-than-expected revenue figure. Here’s how to trade it from here. Shares of Micron (MU) – Get Micron Technology Inc. Report are up about 2% on Friday despite a weaker-than-expected revenue update for investors. The chipmaker reported earnings after the close on Thursday. While the earnings beat expectations, revenue of $6.64 billion fell almost 20% year over year and missed analysts’ expectations. Worse, guidance was a massive miss. Management expects revenue of $4 billion to $4.5 billion next quarter, below Wall Street expectations of $5.6…