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SPYvsSPYMETF Comparison
The ETFs SPDR S&P 500 ETF Trust (SPY) and State Street SPDR Portfolio S&P 500 ETF (SPYM) track the S&P 500 Total Return Index - USD and belong to the same industry segment: US Large Cap. Both ETFs have the same top 3 sector exposures: Information Technology, Communication Services and Financials. SPY is more expensive with a Total Expense Ratio (TER) of 0.0945%, versus 0.02% for SPYM. SPY is down -2.87% year-to-date (YTD) with -$23.66B in YTD flows. SPYM performs better with -2.86% YTD performance, and +$11.19B in YTD flows. Run a side-by-side ETF comparison of SPY and SPYM below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
SPY vs SPYM performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPY SPYM | -2.86%-2.86% | -2.43%-2.42% | -2.87%-2.86% | +21.51%+21.63% | +78.83%+79.28% | +78.92%+79.48% |
| Flows | SPY SPYM | -$7.47B+$2.52B | -$29.32B+$8.26B | -$23.66B+$11.19B | -$39.53B+$37.43B | +$47.16B+$68.99B | +$67.44B+$75.49B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPY SPYM | +11.76%+11.78% | +18.17%+18.18% | +14.79%+14.79% | +16.81%+16.82% |
| Max drawdown | SPY SPYM | -4.79%-4.78% | -13.71%-13.70% | -18.74%-18.74% | -24.50%-24.50% |
| Max drawdown duration | SPY SPYM | 45d45d | 45d45d | 126d126d | 708d708d |
SPY | SPYM | |
Last sale 3/13/2026 at 1:30 PM | $662.29 | |
| Previous close 03/12/2026 | $666.06 | |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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SPY | SPYM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
SPY | SPYM | |
|---|---|---|
| Last price | $662.29 | – |
| 1D performance | -0.57% | – |
| AuM | $669.05 B | $104.52 B |
| E/R | 0.0945% | 0.02% |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the SPY and SPYM ETFs performed in 2026?
As of March 13, 2026, SPY is down -2.87% year-to-date (YTD), while SPYM has lost -2.86%. That puts SPYM better performer ahead so far this year.
Which ETF is attracting more investor money: SPY or SPYM?
Year-to-date, the SPY ETF saw -$23.66B in flows, compared to +$11.19B for SPYM.
Which ETF is more volatile: SPY or SPYM?
Over the past year, SPY had a volatility of 18.17%, while SPYM experienced 18.18%.
Which ETF is bigger: SPY or SPYM?
As of March 13, 2026, SPY holds $669.05 B in assets under management (AUM), while SPYM manages $104.52 B.
What sectors do the SPY and SPYM ETFs invest in?
SPY leans toward sectors like Information Technology, Communication Services and Financials. Meanwhile, SPYM focuses on Information Technology, Communication Services and Financials.
What are the top holdings of the SPY ETF and SPYM ETF?
SPY top holdings include NVIDIA, APPLE and MICROSOFT-T. SPYM holds in its top three: NVIDIA, APPLE and MICROSOFT-T.
Which ETF is more diversified: SPY or SPYM?
SPY holds 502 securities with 44.02% of its assets in the top 15. SPYM has 503 securities and a top 15 weight of 44.01%.
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