ALSN vs PCAR: returns, Sharpe ratio and drawdown

Over the past year, ALSN returned +37.38% against +13.68% for PCAR. Over five years, ALSN averaged +27.57% a year, compared with +13.24% for PCAR. ALSN had the higher Sharpe ratio over the past year (1.04 vs 0.45), meaning more return for each unit of volatility. The worst peak-to-trough drop over the past year was -20.58% for ALSN and -22.68% for PCAR.