SPY vs TMID
State Street SPDR S&P 500 ETF Trust vs T. Rowe Price Mid-Cap Equity Research ETF
Which is better, SPY or TMID?
Large Cap Blend against Mid Cap Blend.
SPY has a lower expense ratio. TMID is less concentrated, with 9.6% of the fund in its ten largest positions against 38.2%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | SPY | TMID |
|---|---|---|
| Expense Ratio | 0.09%Best | 0.47% |
| AUM | $823.2B | $12M |
| Dividend Yield | 0.99% | 0.00% |
| Holdings | 1,515 | 391 |
| YTD Return | +13.53%Best | +0.46% |
| 1Y Return | +17.47% | - |
| 3Y Return (annualized) | +22.36% | - |
| 5Y Return (annualized) | +13.21% | - |
| Top 10 Weight | 38.2% | 9.6%Best |
| Fund Family | State Street Investment Management | T.Rowe Price |
| Category | Equity | Equity |
| Style | Large Cap Blend | Mid Cap Blend |
| Inception | Jan 22, 1993 | Sep 16, 2026 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
SPY vs TMID growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
SPY vs TMID Performance
State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management and T. Rowe Price Mid-Cap Equity Research ETF (TMID) is an ETF from T.Rowe Price. Year to date, SPY is up 13.53% versus a gain of 0.46% for TMID.
Past performance does not guarantee future results.
Fees and Cost Over Time
SPY charges 0.09% per year while TMID charges 0.47%. On a $10,000 position that is $9 vs $47 annually, a gap of $38 per year that compounds over a long holding period. On income, SPY currently yields 0.99% against 0.00% for TMID.
Holdings Overlap
7.8% of SPY's money is in holdings TMID also owns. 42.8% of TMID's money is in holdings SPY also owns.
The two portfolios partly overlap.
140 positions in common, counted across the 504 positions we hold weights for in SPY and 391 in TMID, against full books of 1,515 and 391.
What only one of them owns
Our book lists 228 positions for TMID that do not appear in our book for SPY (51.6% of the fund), and 357 for SPY that do not appear in TMID (91.3%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in SPY | Weight in TMID | Difference |
|---|---|---|---|
| PSXPhillips 66 | 0.16% | 1.14% | 0.98% |
| VLTOVeralto Corp | 0.04% | 0.93% | 0.89% |
| KEYSKeysight Technologies Inc. | 0.08% | 0.87% | 0.79% |
| MPCMarathon Petroleum Corp | 0.18% | 0.64% | 0.46% |
| PTCPtc, Inc.(A) | 0.02% | 0.75% | 0.73% |
| VEEVVeeva Systems Inc | 0.06% | 0.69% | 0.63% |
| HUMHumana Inc. | 0.07% | 0.64% | 0.57% |
| STLDSteel Dynamics Inc | 0.05% | 0.64% | 0.59% |
| AEEAmeren Corporation Utilities | 0.04% | 0.63% | 0.59% |
| AMEAmetek Inc | 0.08% | 0.59% | 0.51% |
42.8% of TMID is already inside SPY.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, SPY or TMID?
SPY has an expense ratio of 0.09% while TMID charges 0.47%. SPY is the cheaper option, by $38 a year on a $10,000 investment.
What is the holdings overlap between SPY and TMID?
42.8% of TMID's money is in holdings SPY also owns. 42.8% of TMID's is in holdings SPY also owns. They hold 140 positions in common, counted across the 504 positions we hold weights for in SPY and 391 in TMID.
Which pays a higher dividend, SPY or TMID?
SPY yields 0.99% while TMID yields 0.00%, so SPY currently pays the higher dividend yield.
Is TMID better than SPY?
SPY has a lower expense ratio. TMID is less concentrated, with 9.6% of the fund in its ten largest positions against 38.2%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.