In a post-earnings research note titled “Double Digit Growth = Triple Digit Stock,” Piper Jaffray analyst Alex Zukin raised his price target for Microsoft shares to $100 from $90. The software giant in premarket trading is up 4%, or $3.42, to $82.18. Microsoft last night reported another impressive quarter, Zukin writes. He says “durable” double digit revenue growth with improving margins driving 19% 2018 free cash flow growth enable him to take his price target to triple digits. The analyst reiterates an Overweight rating on Microsoft.