SPY vs SPYM
State Street SPDR S&P 500 ETF Trust against State Street SPDR Portfolio S&P 500 ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
100%
503 shared positions
Fee gap
8 bp
SPYM is cheaper
1-year return gap
—
Larger fund
SPY
$817.2B
Side by side
| SPY | SPYM | |
|---|---|---|
| Fund | State Street SPDR S&P 500 ETF Trust | State Street SPDR Portfolio S&P 500 ETF |
| Issuer | State Street SPDR | State Street SPDR |
| Category | Large Cap Blend | Large Cap Blend |
| Expense ratio | 0.10% | 0.02% |
| Assets | $817.2B | $178.5B |
| Average daily dollar volume | $33.1B | $1.4B |
| Listed | Jan 22, 1993 | Nov 8, 2005 |
| FrenzyCap score | 88 | 94 |
| 1-month return | +2.7% | +2.7% |
| 3-month return | +3.9% | +3.9% |
| Year to date | +14.2% | +14.2% |
| 1-year return | +15.7% | — |
| 30-day volatility | 9.9% | 9.8% |
| Worst drawdown, 1 year | −9.1% | −9.1% |
| Trailing 12-month yield | 0.97% | 0.99% |
| Holdings | 504 | 507 |
| Top 10 weight | 39.1% | 39.0% |
| Look-through P/E | 26.2 | 26.2 |
| Holdings vs fair value | +0.9% | +0.9% |
| Holdings above 200-day average | 75% | 75% |
| Net flow, latest 3 reported months | — | +$17.9B thru Jun 2026 |
| 30-day implied volatility | 12.2% | 12.7% |
| Holdings as of | as of Oct 8, 2026issuer data | as of Oct 8, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
100% of SPY · 100% of SPYM| Holding | SPY | SPYM |
|---|---|---|
| NVDA | 8.34% | 8.33% |
| AAPL | 7.42% | 7.42% |
| MSFT | 5.80% | 5.79% |
| AMZN | 3.73% | 3.72% |
| GOOGL | 3.06% | 3.05% |
| AVGO | 2.56% | 2.56% |
| GOOG | 2.45% | 2.45% |
| META | 2.38% | 2.37% |
| MU | 1.75% | 1.75% |
| TSLA | 1.58% | 1.58% |
| AMD | 1.51% | 1.51% |
| BRK.B | 1.42% | 1.42% |
| LLY | 1.40% | 1.40% |
| JPM | 1.32% | 1.31% |
| XOM | 1.04% | 1.03% |
| V | 0.96% | 0.95% |
| JNJ | 0.92% | 0.92% |
| INTC | 0.80% | 0.79% |
| WMT | 0.74% | 0.74% |
| ABBV | 0.72% | 0.72% |
| MA | 0.69% | 0.69% |
| PLTR | 0.68% | 0.68% |
| CSCO | 0.68% | 0.68% |
| COST | 0.63% | 0.63% |
| CVX | 0.63% | 0.62% |
Sector mix of the stock holdings
| Sector | SPY | SPYM | Gap |
|---|---|---|---|
| Technology | 48.3% | 48.2% | +0.0% |
| Industrials | 10.7% | 10.7% | +0.0% |
| Consumer Discretionary | 10.1% | 10.1% | +0.0% |
| Financials | 9.2% | 9.1% | +0.0% |
| Health Care | 8.2% | 8.2% | +0.0% |
| Consumer Staples | 3.2% | 3.2% | +0.0% |
| Energy | 3.0% | 3.0% | +0.0% |
| Utilities | 2.5% | 2.5% | +0.0% |
| Materials | 1.8% | 1.8% | +0.0% |
| Real Estate | 1.6% | 1.6% | +0.0% |
| Communication Services | 1.3% | 1.3% | +0.0% |
More: full overlap table · SPY holdings · SPYM holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.