SPYvsSPYMETF Comparison
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The ETFs State Street 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: Technology, Finance and Consumer Non-Cyclicals. SPY is more expensive with a Total Expense Ratio (TER) of 0.0945%, versus 0.02% for SPYM. SPY is up 12.16% year-to-date (YTD) with +$8.98B in YTD flows. SPYM performs better with 12.21% YTD performance, and +$54.75B 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.
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SPY vs SPYM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/14/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPY SPYM | -2.02%-2.02% | +1.10%+1.11% | +12.16%+12.21% | +16.41%+16.48% | +75.34%+75.74% | +83.35%+83.94% |
| Flows | SPY SPYM | -$217M-$378M | -$324M+$25.60B | +$8.98B+$54.75B | +$33.06B+$61.59B | +$71.45B+$109.72B | +$80.92B+$117.03B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPY SPYM | +11.47%+11.48% | +12.87%+12.88% | +15.04%+15.05% | +17.04%+17.05% |
| Max drawdown | SPY SPYM | -3.40%-3.40% | -8.89%-8.89% | -18.74%-18.74% | -24.50%-24.50% |
| Max drawdown duration | SPY SPYM | 19d19d | 76d76d | 126d126d | 708d708d |
Trading data
SPY | SPYM | |
Last sale 9/15/2026 at 7:00 PM | $757.59 | |
| Previous close 09/14/2026 | $760.88 | |
| Consolidated volume 09/14/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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SPY | SPYM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/15/2026 at 7:00 PM
Live
Closed
SPY | SPYM | |
|---|---|---|
| Last price | $757.59 | – |
| 1D performance | -0.43% | – |
| AuM | $802.94 B | $166.96 B |
| E/R | 0.0945% | 0.02% |
Characteristics
SPY | SPYM | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | State Street Investment Management | State Street Investment Management |
| Benchmark | S&P 500 Index | S&P 500 Index |
| N° of holdings | 497 | 498 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | January 22, 1993 | November 8, 2005 |
| ESG | No | No |
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Exposure
Countries
SPY
USA
96.41%
Other
3.59%
SPYM
USA
96.38%
Other
3.62%
Sectors
SPY
Technology
44.7%
Finance
13.9%
Consumer Non-Cycl.
9.41%
Healthcare
8.88%
Industrials
7.86%
Other
15.24%
SPYM
Technology
44.69%
Finance
13.9%
Consumer Non-Cycl.
9.41%
Healthcare
8.88%
Industrials
7.86%
Other
15.27%
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Diversification
SPY
Total weight of top 15 holdings out of 15
43.98%
SPYM
Total weight of top 15 holdings out of 15
43.97%
Top 15 holdings
Data as of July 31, 2026
SPY
NVIDIA Corp.
7.55%
Apple, Inc.
7.04%
Microsoft Corp.
5.36%
Amazon.com, Inc.
4.13%
Alphabet, Inc.
3.24%
Broadcom Inc.
2.86%
Alphabet, Inc.
2.62%
Meta Platforms, Inc.
1.90%
JPMorgan Chase & Co.
1.46%
Berkshire Hathaway, Inc.
1.46%
Micron Technology, Inc.
1.44%
Eli Lilly & Co.
1.41%
Tesla, Inc.
1.36%
Advanced Micro Devices, Inc.
1.21%
Johnson & Johnson
0.96%
SPYM
NVIDIA Corp.
7.54%
Apple, Inc.
7.04%
Microsoft Corp.
5.36%
Amazon.com, Inc.
4.13%
Alphabet, Inc.
3.24%
Broadcom Inc.
2.86%
Alphabet, Inc.
2.62%
Meta Platforms, Inc.
1.90%
JPMorgan Chase & Co.
1.46%
Berkshire Hathaway, Inc.
1.46%
Micron Technology, Inc.
1.44%
Eli Lilly & Co.
1.41%
Tesla, Inc.
1.36%
Advanced Micro Devices, Inc.
1.20%
Johnson & Johnson
0.96%
Frequently asked questions about SPY and SPYM
How have the SPY and SPYM ETFs performed in 2026?
As of September 14, 2026, SPY is up 12.16% year-to-date (YTD), while SPYM has returned 12.21%. 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 +$8.98B in flows, compared to +$54.75B for SPYM.
Which ETF is more volatile: SPY or SPYM?
Over the past year, SPY had a volatility of 12.87%, while SPYM experienced 12.88%.
Which ETF is bigger: SPY or SPYM?
As of September 14, 2026, SPY holds $802.94 B in assets under management (AUM), while SPYM manages $166.96 B.
What sectors do the SPY and SPYM ETFs invest in?
SPY leans toward sectors like Technology, Finance and Consumer Non-Cyclicals. Meanwhile, SPYM focuses on Technology, Finance and Consumer Non-Cyclicals.
What are the top holdings of the SPY ETF and SPYM ETF?
SPY top holdings include NVIDIA Corp., Apple, Inc. and Microsoft Corp.. SPYM holds in its top three: NVIDIA Corp., Apple, Inc. and Microsoft Corp..
Which ETF is more diversified: SPY or SPYM?
SPY holds 500 securities with 43.98% of its assets in the top 15. SPYM has 501 securities and a top 15 weight of 43.97%.
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