Schwab US Large-Cap ETF (SCHX) is a ETF from Charles Schwab Asset Management and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year SCHX returned +22.28% while SPY returned +22.80%. Year to date, SCHX is up 12.96% versus a gain of 13.10% for SPY.

Over three years, SCHX compounded at +20.96% per year against +20.98% for SPY; over five years the annualized figures are +12.62% and +13.20% respectively. Across the full 17-year window we track, SCHX has the edge at +13.20% annualized vs +8.83%. Past performance does not guarantee future results.

SPY has been the more volatile fund, with annualized monthly volatility of 15.3% compared with 14.5% for SCHX. 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 -34.3% for SCHX 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 1.00. They move almost in lockstep, so holding both mostly duplicates the same exposure.

SCHX charges 0.03% per year while SPY charges 0.09%. On a $10,000 position that is $3 vs $9 annually, a gap of $6 per year that compounds over a long holding period. On income, SCHX currently yields 1.03% against 1.01% for SPY.