Fidelity MSCI Financials Index ETF (FNCL) is a ETF from Fidelity Investments (US) and Vanguard S&P 500 ETF (VOO) is a ETF from Vanguard (US). Over the past year FNCL returned +13.76% while VOO returned +23.65%. Year to date, FNCL is up 6.81% versus a gain of 13.53% for VOO.

Over three years, FNCL compounded at +20.42% per year against +21.27% for VOO; over five years the annualized figures are +11.67% and +13.52% respectively. Across the full 13-year window we track, VOO has the edge at +13.57% annualized vs +10.72%. Past performance does not guarantee future results.

FNCL has been the more volatile fund, with annualized monthly volatility of 18.6% compared with 14.1% for VOO. 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 -45.0% for FNCL and -34.3% for VOO. 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 0.81. They usually move together, but the gap leaves some room for diversification.

FNCL charges 0.08% per year while VOO charges 0.03%. On a $10,000 position that is $8 vs $3 annually, a gap of $5 per year that compounds over a long holding period. On income, FNCL currently yields 1.65% against 1.09% for VOO.