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SPLG vs SPY: Performance & Backtest Comparison
SPY delivered the higher return - 13.78% CAGR vs 13.18% - over 2011-02-28 → 2025-10-31.
Growth comparison
Drawdown
Annual returns
| SPLG | SPY | |
|---|---|---|
| Name | SPDR Portfolio S&P 500 ETF | State Street SPDR S&P 500 ETF Trust |
| CAGR | 13.18% | 13.78% |
| Total return | 521.24% | 639.34% |
| Volatility | 14.05% | 14.19% |
| Max drawdown | -23.90%Sep 2022 | -23.93%Sep 2022 |
| Sharpe | 0.86 | 0.88 |
| Sortino | 1.23 | 1.29 |
| Best year | 31.99% | 32.31% |
| Worst year | -18.10% | -18.17% |
| Final balance | $62,124 | $73,934 |
Correlation of monthly returns: 0.99. Wondering if you need both? Check their fund overlap →
All figures are total returns: every dividend and distribution is reinvested on its ex-date, and prices are split-adjusted. See the methodology.
Frequently asked questions
Which has performed better, SPLG or SPY?
Over 2011-02-28 to 2025-10-31, SPY performed better: 13.78% annualized versus 13.18% for SPLG, with dividends reinvested. Past performance does not guarantee future results.
How similar are SPLG and SPY?
Their monthly returns have a correlation of 0.99 over the common period. SPLG is SPDR Portfolio S&P 500 ETF; SPY is State Street SPDR S&P 500 ETF Trust.
Which is riskier, SPLG or SPY?
Over the common period SPLG had 14.05% annualized volatility and a -23.90% max drawdown, versus 14.19% and -23.93% for SPY.