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: Information Technology, Financials and Communication Services. SPY is more expensive with a Total Expense Ratio (TER) of 0.0945%, versus 0.02% for SPYM. SPY is up 4.65% year-to-date (YTD) with -$18.27B in YTD flows. SPYM performs better with 4.66% YTD performance, and +$32.56B 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 04/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPY SPYM | +12.59%+12.61% | +2.59%+2.60% | +4.65%+4.66% | +30.59%+30.69% | +77.82%+78.28% | +82.69%+83.26% |
| Flows | SPY SPYM | +$10.00B+$8.06B | -$2.85B+$24.97B | -$18.27B+$32.56B | -$12.00B+$52.15B | +$44.21B+$89.37B | +$70.46B+$96.63B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPY SPYM | +15.24%+15.26% | +12.45%+12.46% | +14.90%+14.91% | +16.92%+16.94% |
| Max drawdown | SPY SPYM | -8.88%-8.88% | -8.89%-8.89% | -18.74%-18.74% | -24.50%-24.50% |
| Max drawdown duration | SPY SPYM | 75d75d | 76d76d | 126d126d | 708d708d |
Trading data
SPY | SPYM | |
Last sale 4/29/2026 at 5:33 PM | $710.16 | |
| Previous close 04/28/2026 | $711.69 | |
| Consolidated volume 04/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of March 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 4/29/2026 at 5:33 PM
Live
Closed
SPY | SPYM | |
|---|---|---|
| Last price | $710.16 | – |
| 1D performance | -0.21% | – |
| AuM | $724.29 B | $135.60 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 | 478 | 478 |
| 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
96.95%
Other
3.05%
SPYM
USA
96.87%
Other
3.13%
Sectors
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%
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%
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Diversification
SPY
Total weight of top 15 holdings out of 15
42.5%
SPYM
Total weight of top 15 holdings out of 15
42.47%
Top 15 holdings
Data as of March 31, 2026
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%
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%
Frequently asked questions about SPY and SPYM
How have the SPY and SPYM ETFs performed in 2026?
As of April 28, 2026, SPY is up 4.65% year-to-date (YTD), while SPYM has returned 4.66%. 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 -$18.27B in flows, compared to +$32.56B for SPYM.
Which ETF is more volatile: SPY or SPYM?
Over the past year, SPY had a volatility of 12.45%, while SPYM experienced 12.46%.
Which ETF is bigger: SPY or SPYM?
As of April 28, 2026, SPY holds $724.29 B in assets under management (AUM), while SPYM manages $135.60 B.
What sectors do the SPY and SPYM ETFs invest in?
SPY leans toward sectors like Information Technology, Financials and Communication Services. Meanwhile, SPYM focuses on Information Technology, Financials and Communication Services.
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 42.5% of its assets in the top 15. SPYM has 503 securities and a top 15 weight of 42.47%.
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