SPYMvsSPYETF Comparison
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The ETFs State Street SPDR Portfolio S&P 500 ETF (SPYM) and State Street SPDR S&P 500 ETF Trust (SPY) 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, Financials and Communication Services. SPYM is less expensive with a Total Expense Ratio (TER) of 0.02%, versus 0.0945% for SPY. SPYM is up 9.06% year-to-date (YTD) with +$34.49B in YTD flows. SPY performs worse with 9.04% YTD performance, and -$9.18B in YTD flows. Run a side-by-side ETF comparison of SPYM and SPY 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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SPYM vs SPY performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 05/20/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPYM SPY | +4.65%+4.64% | +7.88%+7.87% | +9.06%+9.04% | +26.61%+26.52% | +84.48%+84.02% | +91.83%+91.23% |
| Flows | SPYM SPY | +$1.76B+$8.60B | +$25.16B+$7.98B | +$34.49B-$9.18B | +$51.87B+$12.62B | +$91.22B+$51.12B | +$98.28B+$80.77B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPYM SPY | +14.94%+14.93% | +12.19%+12.17% | +14.90%+14.89% | +16.90%+16.89% |
| Max drawdown | SPYM SPY | -8.56%-8.55% | -8.89%-8.89% | -18.74%-18.74% | -24.50%-24.50% |
| Max drawdown duration | SPYM SPY | 47d47d | 76d76d | 126d126d | 708d708d |
Trading data
SPYM | SPY | |
Last sale 5/21/2026 at 4:09 PM | $739.81 | |
| Previous close 05/20/2026 | $741.25 | |
| Consolidated volume 05/20/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of April 30, 2026
1-year trailing difference
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SPYM | SPY | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 5/21/2026 at 4:09 PM
Live
Closed
SPYM | SPY | |
|---|---|---|
| Last price | – | $739.81 |
| 1D performance | – | -0.19% |
| AuM | $143.28 B | $764.13 B |
| E/R | 0.02% | 0.0945% |
Characteristics
SPYM | SPY | |
|---|---|---|
| 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 | 478 | 478 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 8, 2005 | January 22, 1993 |
| ESG | No | No |
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Exposure
Countries
SPYM
USA
96.87%
Other
3.13%
SPY
USA
96.95%
Other
3.05%
Sectors
SPYM
Information Techn.
33.91%
Financials
10.38%
Communication Ser.
10.22%
Consumer Discreti.
10.01%
Health Care
9.32%
Industrials
8.32%
Other
17.84%
SPY
Information Techn.
33.93%
Financials
10.39%
Communication Ser.
10.23%
Consumer Discreti.
10.01%
Health Care
9.32%
Industrials
8.33%
Other
17.78%
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Diversification
SPYM
Total weight of top 15 holdings out of 15
42.47%
SPY
Total weight of top 15 holdings out of 15
42.5%
Top 15 holdings
Data as of March 31, 2026
SPYM
NVIDIA
7.57%
APPLE
6.66%
MICROSOFT-T
4.91%
AMAZON.COM INC
3.64%
ALPHABET INC-CL
2.99%
BROADCOM LIMITED
2.62%
ALPHABET INC-CL
2.40%
META PLATFORMS
2.24%
TESLA
1.87%
BERKSHIRE HATHWAY
1.57%
JPMORGAN CHASE
1.42%
LILLY
1.30%
EXXON
1.27%
JOHNSON&JOHNSON
1.05%
WALMART INC
0.97%
SPY
NVIDIA
7.58%
APPLE
6.66%
MICROSOFT-T
4.91%
AMAZON.COM INC
3.64%
ALPHABET INC-CL
2.99%
BROADCOM LIMITED
2.62%
ALPHABET INC-CL
2.40%
META PLATFORMS
2.24%
TESLA
1.87%
BERKSHIRE HATHWAY
1.57%
JPMORGAN CHASE
1.42%
LILLY
1.30%
EXXON
1.27%
JOHNSON&JOHNSON
1.05%
WALMART INC
0.97%
Frequently asked questions about SPYM and SPY
How have the SPYM and SPY ETFs performed in 2026?
As of May 20, 2026, SPYM is up 9.06% year-to-date (YTD), while SPY has returned 9.04%. That puts SPYM better performer ahead so far this year.
Which ETF is attracting more investor money: SPYM or SPY?
Year-to-date, the SPYM ETF saw +$34.49B in flows, compared to -$9.18B for SPY.
Which ETF is more volatile: SPYM or SPY?
Over the past year, SPYM had a volatility of 12.19%, while SPY experienced 12.17%.
Which ETF is bigger: SPYM or SPY?
As of May 20, 2026, SPYM holds $143.28 B in assets under management (AUM), while SPY manages $764.13 B.
What sectors do the SPYM and SPY ETFs invest in?
SPYM leans toward sectors like Information Technology, Financials and Communication Services. Meanwhile, SPY focuses on Information Technology, Financials and Communication Services.
What are the top holdings of the SPYM ETF and SPY ETF?
SPYM top holdings include NVIDIA, APPLE and MICROSOFT-T. SPY holds in its top three: NVIDIA, APPLE and MICROSOFT-T.
Which ETF is more diversified: SPYM or SPY?
SPYM holds 503 securities with 42.47% of its assets in the top 15. SPY has 502 securities and a top 15 weight of 42.5%.
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