Have you been paying attention to shares of Powell Industries (POWL) ? Shares have been on the move with the stock up 19.3% over the past month. The stock hit a new 52-week high of $223.23 in the previous session. Powell Industries has gained 147% since the start of the year compared to the 13.1% move for the Zacks Industrial Products sector and the 15.1% return for the Zacks Manufacturing - Electronics industry. What's Driving the Outperformance? The stock has a great record of positive earnings surprises, ...