SPYUS equity
State Street SPDR S&P 500 ETF Trust
504holdings
0.09%annual fee
USmarket
Valuation492 companies covered
27.5×P / E97% by weight
5.44×P / B85% by weight
3.6%Earnings yield
ETF comparisons / SPY vs SPYM
US equity comparison · Holdings dated 2026-09-11
SPY vs SPYM
State Street SPDR S&P 500 ETF Trust compared with State Street SPDR Portfolio S&P 500 ETF
These funds provide similar company exposure.SPY has 0 companies outside the overlap; SPYM has 2.
Do SPY and SPYM overlap?
SPY and SPYM overlap by 99.7% by weight, across 501 shared companies.
SPYMUS equity
State Street SPDR Portfolio S&P 500 ETF
507holdings
0.02%annual fee
USmarket
Valuation492 companies covered
27.5×P / E97% by weight
5.44×P / B85% by weight
3.6%Earnings yield
Price development
Both lines rebased to 0% over their shared dates
Largest shared positions
501 companies held in both funds
SPY weight
SPYM weight
| Shared company | SPY | SPYM |
|---|---|---|
| NVIDIA CORP NVDA | 8.01% | 8.00% |
| Apple Inc AAPL | 7.40% | 7.38% |
| Microsoft Corp MSFT | 5.58% | 5.57% |
| ALPHABET INC GOOGL 2 share classes | 5.41% | 5.40% |
| ↳ ALPHABET INC-CL A GOOGL | 3.01% | 3.00% |
| ↳ ALPHABET INC-CL C GOOG | 2.40% | 2.40% |
| AMAZON.COM INC AMZN | 3.81% | 3.80% |
| BROADCOM INC AVGO | 2.60% | 2.59% |
| META PLATFORMS INC-CLASS A META | 2.16% | 2.15% |
| Micron Technology Inc MU | 1.67% | 1.66% |
| TESLA INC TSLA | 1.56% | 1.56% |
| JPMorgan Chase & Co JPM | 1.45% | 1.44% |
| BERKSHIRE HATHAWAY INC. BRK/B | 1.42% | 1.42% |
| ELI LILLY & CO LLY | 1.34% | 1.34% |
| ADVANCED MICRO DEVICES AMD | 1.28% | 1.27% |
| ExxonMobil Holdings Corporation 2670549D | 1.04% | 1.04% |
| JOHNSON & JOHNSON JNJ | 0.97% | 0.97% |
| Visa Inc V | 0.93% | 0.93% |
| Intel Corp INTC | 0.77% | 0.77% |
| WALMART INC. WMT | 0.71% | 0.71% |
| Mastercard Inc MA | 0.70% | 0.69% |
| AbbVie Inc ABBV | 0.69% | 0.69% |
| CISCO SYSTEMS, INC. CSCO | 0.67% | 0.67% |
| Bank of America Corp BAC | 0.62% | 0.62% |
| Costco Wholesale Corp COST | 0.61% | 0.61% |
| Chevron Corp CVX | 0.61% | 0.61% |
| PALANTIR TECHNOLOGIES INC-A PLTR | 0.58% | 0.58% |
SPY and SPYM questions
Based on the holdings compared above
How much do SPY and SPYM overlap?
SPY and SPYM overlap by 99.7% by weight, across 501 shared companies.
Which companies do SPY and SPYM both hold?
The largest companies held in both funds are NVIDIA CORP, Apple Inc, Microsoft Corp, ALPHABET INC, AMAZON.COM INC.
Can I hold both SPY and SPYM?
Holding both means 99.7% of that part of your portfolio is the same companies counted twice. That can suit you or not depending on your goals; this tool reports the overlap rather than giving advice.
Is SPY or SPYM cheaper?
SPY has a 0.09% expense ratio and SPYM has 0.02%.
How do SPY and SPYM compare on valuation?
SPY has a weighted P/E of 27.5 and SPYM has a weighted P/E of 27.5.
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