Fidelity MSCI Energy Index ETF (FENY) is a ETF from Fidelity Investments (US) and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year FENY returned +41.70% while SPY returned +23.56%. Year to date, FENY is up 30.09% versus a gain of 13.50% for SPY.

Over three years, FENY compounded at +14.13% per year against +21.17% for SPY; over five years the annualized figures are +23.80% and +13.46% respectively. Across the full 13-year window we track, SPY has the edge at +8.85% annualized vs +3.59%. Past performance does not guarantee future results.

FENY has been the more volatile fund, with annualized monthly volatility of 28.7% compared with 15.3% for SPY. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.

The deepest peak-to-trough decline in our data was -78.9% for FENY and -56.5% for SPY. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.

The two funds' monthly returns correlate at 0.55. They move independently enough that combining them can meaningfully diversify a portfolio.

FENY charges 0.08% per year while SPY charges 0.09%. On a $10,000 position that is $8 vs $9 annually, a gap of $1 per year that compounds over a long holding period. On income, FENY currently yields 2.63% against 1.01% for SPY.