SPY vs SPYM: holdings overlap, shared companies and scores
As of October 9, 2026, SPY and SPYM overlap 99.9% by weight. State Street SPDR S&P 500 ETF (SPY): S&P 500 index exposure. State Street SPDR Portfolio S&P 500 ETF (SPYM): S&P 500 index.
Updated October 9, 2026
Where SPY and SPYM trade against their own history
SPY trades at 24.7 times earnings, against its own median of 22.8, and is more expensive than 62% of its own 115 monthly readings since 2017.
SPYM trades at 24.7 times earnings, against its own median of 23.4, and is more expensive than 60% of its own 109 monthly readings since 2017.
What moved SPY and SPYM this week
SPY rose 1.2% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Palantir Technologies (+10.8%); Nvidia (−2.0%) pushed the other way.
SPYM rose 1.1% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Palantir Technologies (+10.8%); Nvidia (−2.0%) pushed the other way.
What do SPY and SPYM each hold?
What's inside SPY: Tech 45%, Magnificent 7 35%.
39% of SPY is its ten largest holdings.
What's inside SPYM: Tech 45%, Magnificent 7 35%.
39% of SPYM is its ten largest holdings.
How much do SPY and SPYM overlap? 99.9% by weight
As of October 9, 2026, SPY and SPYM overlap 99.9% by weight.
100% of SPY is already inside SPYM.
100% of SPYM is already inside SPY.
SPY holds 504 companies and SPYM holds 506; 504 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score SPY and SPYM? 7.0 and 7.1 out of 10
As of October 9, 2026, ETF Copilot scores SPY 7.0 out of 10 and SPYM 7.1 out of 10.
They differ most on Value: SPY 3.1 and SPYM 3.5.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | SPY | SPYM |
|---|---|---|
| Growth | 7.6 | 7.6 |
| Value | 3.1 | 3.5 |
| Risk | 6.8 | 6.8 |
| Quality | 8.7 | 8.7 |
| Return | 8.1 | 8.2 |
SPYM is the cheaper of the two at 0.02% a year
As of October 9, 2026, SPY charges 0.09% a year, yields 0.97% and holds $817.2B in assets across 504 positions.
As of October 9, 2026, SPYM charges 0.02% a year, yields 1.00% and holds $178.5B in assets across 506 positions.
| Measure | SPY | SPYM |
|---|---|---|
| Expense ratio | 0.09% | 0.02% |
| Dividend yield | 0.97% | 1.00% |
| Assets under management | $817.2B | $178.5B |
| Holdings | 504 | 506 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Compare with similar funds
Cite this
ETF Copilot, “SPY vs SPYM holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/spy-vs-spym
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