Shares of Powell Industries, Inc. (POWL) are showing impressive gains of late, hovering at more than $200 per share in the past seven trading sessions. The stock closed at $221.99 on Monday, just 1.8% below its 52- week high of $226. In the past three months, the electrical equipment manufacturer's shares have jumped 53.4%, outpacing the Zacks Manufacturing - Electronics industry and the S&P 500's returns of 5.4% and 4.0%, respectively. The company has also outperformed other industry players like EnerSys ( ...