GPK vs SPY: returns, Sharpe ratio and drawdown

Over the past year, SPY returned +13.70% against -50.75% for GPK. Over five years, SPY averaged +10.77% a year, compared with -15.63% for GPK. SPY had the higher Sharpe ratio over the past year (0.73 vs -1.41), meaning more return for each unit of volatility. The worst peak-to-trough drop over the past year was -9.13% for SPY and -53.76% for GPK.