RESM vs SPY
Columbia Research Enhanced Small Cap ETF vs State Street SPDR S&P 500 ETF Trust
Which is better, RESM or SPY?
Small Cap Blend against Large Cap Blend.
SPY has a lower expense ratio. RESM is less concentrated, with 4.7% of the fund in its ten largest positions against 37.8%.
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 | RESM | SPY |
|---|---|---|
| Expense Ratio | 0.32% | 0.09%Best |
| AUM | - | $804.7B |
| Dividend Yield | 0.08% | 0.98% |
| Holdings | 1,029 | 505 |
| YTD Return | +17.02%Best | +10.96% |
| 1Y Return | - | +15.52% |
| 3Y Return (annualized) | - | +20.73% |
| 5Y Return (annualized) | - | +12.53% |
| Top 10 Weight | 4.7%Best | 37.8% |
| Fund Family | Columbia Threadneedle Investments | State Street Investment Management |
| Category | Equity | Equity |
| Style | Small Cap Blend | Large Cap Blend |
| Inception | Dec 11, 2025 | Jan 22, 1993 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
RESM vs SPY 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.
RESM vs SPY Performance
Columbia Research Enhanced Small Cap ETF (RESM) is an ETF from Columbia Threadneedle Investments and State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management. Year to date, RESM is up 17.02% versus a gain of 10.96% for SPY.
Past performance does not guarantee future results.
Fees and Cost Over Time
RESM charges 0.32% per year while SPY charges 0.09%. On a $10,000 position that is $32 vs $9 annually, a gap of $23 per year that compounds over a long holding period. On income, RESM currently yields 0.08% against 0.98% for SPY.
Holdings Overlap
We hold position weights for 964 holdings in RESM and 504 in SPY, totalling 95.5% and 99.9% of the two funds. The two books name no position in common, so there is no overlap percentage to show.
0 positions in common, counted across the 964 positions we hold weights for in RESM and 504 in SPY, against full books of 1,029 and 505.
What only one of them owns
Our book lists 497 positions for SPY that do not appear in our book for RESM (99.3% of the fund), and 910 for RESM that do not appear in SPY (91.4%).
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.
You are not choosing between two funds in isolation.
Whichever of RESM and SPY you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, RESM or SPY?
RESM has an expense ratio of 0.32% while SPY charges 0.09%. SPY is the cheaper option, by $23 a year on a $10,000 investment.
Which pays a higher dividend, RESM or SPY?
RESM yields 0.08% while SPY yields 0.98%, so SPY currently pays the higher dividend yield.
Is SPY better than RESM?
SPY has a lower expense ratio. RESM is less concentrated, with 4.7% of the fund in its ten largest positions against 37.8%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.