BRSM vs SPY
MFS Blended Research Small-Mid Cap ETF vs State Street SPDR S&P 500 ETF Trust
Which is better, BRSM or SPY?
Mid Cap Blend against Large Cap Blend.
SPY has a lower expense ratio. BRSM is less concentrated, with 10.2% 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 | BRSM | SPY |
|---|---|---|
| Expense Ratio | 0.38% | 0.09%Best |
| AUM | $27M | $804.7B |
| Dividend Yield | 0.00% | 0.98% |
| Holdings | 311 | 505 |
| YTD Return | +1.56% | +11.97%Best |
| 1Y Return | - | +16.40% |
| 3Y Return (annualized) | - | +21.10% |
| 5Y Return (annualized) | - | +12.88% |
| Top 10 Weight | 10.2%Best | 37.8% |
| Fund Family | MFS Investment Management | State Street Investment Management |
| Category | Equity | Equity |
| Style | Mid Cap Blend | Large Cap Blend |
| Inception | Jun 4, 2026 | Jan 22, 1993 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
BRSM 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.
BRSM vs SPY Performance
MFS Blended Research Small-Mid Cap ETF (BRSM) is an ETF from MFS Investment Management and State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management. Year to date, BRSM is up 1.56% versus a gain of 11.97% for SPY.
Past performance does not guarantee future results.
Fees and Cost Over Time
BRSM charges 0.38% per year while SPY charges 0.09%. On a $10,000 position that is $38 vs $9 annually, a gap of $29 per year that compounds over a long holding period. On income, BRSM currently yields 0.00% against 0.98% for SPY.
Holdings Overlap
12.1% of BRSM's money is in holdings SPY also owns. 0.8% of SPY's money is in holdings BRSM also owns.
BRSM and SPY share little of their money.
27 positions in common, counted across the 311 positions we hold weights for in BRSM and 504 in SPY, against full books of 311 and 505.
What only one of them owns
Our book lists 470 positions for SPY that do not appear in our book for BRSM (98.6% of the fund), and 271 for BRSM that do not appear in SPY (84.1%).
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 BRSM | Weight in SPY | Difference |
|---|---|---|---|
| EGEverest Group Ltd Common Stock | 0.99% | 0.02% | 0.97% |
| UHSUniversal Health Services Inc. | 0.97% | 0.01% | 0.96% |
| GDDYGodaddy Inc. Class A | 0.77% | 0.02% | 0.75% |
| NDSNNordson Corp | 0.75% | 0.03% | 0.72% |
| ZBRAZebra Technologies Corp | 0.69% | 0.02% | 0.67% |
| HSTHost Hotels & Resorts Inc | 0.68% | 0.02% | 0.66% |
| JJacobs Engineering Group Inc. | 0.67% | 0.03% | 0.64% |
| CRLCharles River Laboratories International Inc | 0.66% | 0.02% | 0.64% |
| SJMJ M Smucker Co/The | 0.66% | 0.02% | 0.64% |
| TXTTextron Inc. | 0.58% | 0.02% | 0.56% |
You are not choosing between two funds in isolation.
Whichever of BRSM 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, BRSM or SPY?
BRSM has an expense ratio of 0.38% while SPY charges 0.09%. SPY is the cheaper option, by $29 a year on a $10,000 investment.
What is the holdings overlap between BRSM and SPY?
12.1% of BRSM's money is in holdings SPY also owns. 0.8% of SPY's is in holdings BRSM also owns. They hold 27 positions in common, counted across the 311 positions we hold weights for in BRSM and 504 in SPY.
Which pays a higher dividend, BRSM or SPY?
BRSM yields 0.00% while SPY yields 0.98%, so SPY currently pays the higher dividend yield.
Is SPY better than BRSM?
SPY has a lower expense ratio. BRSM is less concentrated, with 10.2% 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.