MFSG vs SPY
MFS Active Growth ETF vs State Street SPDR S&P 500 ETF Trust
Which is better, MFSG or SPY?
Large Cap Growth against Large Cap Blend.
SPY has a lower expense ratio. SPY led over 1Y and the full window. The two have moved almost in lockstep, correlation 0.95. SPY is less concentrated, with 38.0% of the fund in its ten largest positions against 52.7%.
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 | MFSG | SPY |
|---|---|---|
| Expense Ratio | 0.49% | 0.09%Best |
| AUM | $375M | $804.7B |
| Dividend Yield | 0.07% | 0.98% |
| Holdings | 69 | 505 |
| YTD Return | +5.87% | +12.47%Best |
| 1Y Return | +7.69% | +17.51%Best |
| 3Y Return (annualized) | - | +21.18% |
| 5Y Return (annualized) | - | +12.88% |
| Volatility (annualized) | 17.9% | 12.6%Best |
| Max Drawdown | -23.2% | -18.8%Best |
| $10,000 over 1.8 years | $11,825 | $12,919Best |
| Top 10 Weight | 52.7% | 38.0%Best |
| Fund Family | MFS Investment Management | State Street Investment Management |
| Category | Equity | Equity |
| Style | Large Cap Growth | Large Cap Blend |
| Inception | Dec 5, 2024 | Jan 22, 1993 |
Volatility and max drawdown, and the $10,000 over 1.8 years row, are measured over the window both funds cover: Dec 5, 2024 to Sep 11, 2026 (1.8 years).
MFSG 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 covers the 1.8 years both funds cover.
MFSG vs SPY Performance
MFS Active Growth ETF (MFSG) 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. Over the past year MFSG returned +7.69% while SPY returned +17.51%. Year to date, MFSG is up 5.87% versus a gain of 12.47% for SPY.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
MFSG has been the more volatile fund, with annualized monthly volatility of 17.9% compared with 12.6% for SPY. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -23.2% for MFSG and -18.8% for SPY. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.95. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
MFSG charges 0.49% per year while SPY charges 0.09%. On a $10,000 position that is $49 vs $9 annually, a gap of $40 per year that compounds over a long holding period. On income, MFSG currently yields 0.07% against 0.98% for SPY.
Holdings Overlap
91.5% of MFSG's money is in holdings SPY also owns. 48.0% of SPY's money is in holdings MFSG also owns.
Most of MFSG is already inside SPY. Owning both mostly buys the same companies twice.
56 positions in common, counted across the 68 positions we hold weights for in MFSG and 504 in SPY, against full books of 69 and 505.
What only one of them owns
Our book lists 439 positions for SPY that do not appear in our book for MFSG (51.6% of the fund), and 8 for MFSG that do not appear in SPY (5.0%).
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 MFSG | Weight in SPY | Difference |
|---|---|---|---|
| NVDANvidia Corp. | 13.16% | 7.71% | 5.45% |
| GOOGLAlphabet A Usd 0.001 | 12.04% | 3.33% | 8.71% |
| AAPLApple, Inc | 6.32% | 6.83% | 0.51% |
| MSFTMicrosoft Corp 4.100 Feb 06 37 | 4.67% | 5.50% | 0.83% |
| AMZNAmazon.Com Inc | 3.12% | 4.08% | 0.96% |
| AVGOBroadcom Inc | 3.71% | 2.97% | 0.74% |
| METAMeta Platforms, Inc. | 2.35% | 1.94% | 0.41% |
| VVisa Inc | 3.29% | 0.92% | 2.37% |
| GEVGE Vernova, LLC | 2.14% | 0.41% | 1.73% |
| MUMicron Technology, Inc. | 1.03% | 1.51% | 0.48% |
91.5% of MFSG 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, MFSG or SPY?
MFSG has an expense ratio of 0.49% while SPY charges 0.09%. SPY is the cheaper option, by $40 a year on a $10,000 investment.
Which performed better, MFSG or SPY?
Over the past year MFSG returned +7.69% vs +17.51% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (2 years), MFSG annualized +9.76% vs +15.29% for SPY. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, MFSG or SPY?
MFSG has been the more volatile fund at 17.9% annualized versus 12.6% for SPY. Worst drawdown: MFSG -23.2% vs SPY -18.8%.
Should I hold both MFSG and SPY?
MFSG and SPY have a monthly-return correlation of 0.95, so they move almost identically. What is left to separate them is the fee and the index each one tracks. This is information, not a recommendation.
What is the holdings overlap between MFSG and SPY?
91.5% of MFSG's money is in holdings SPY also owns. 48.0% of SPY's is in holdings MFSG also owns. They hold 56 positions in common, counted across the 68 positions we hold weights for in MFSG and 504 in SPY.
Which pays a higher dividend, MFSG or SPY?
MFSG yields 0.07% while SPY yields 0.98%, so SPY currently pays the higher dividend yield.
Is SPY better than MFSG?
SPY has a lower expense ratio. SPY led over 1Y and the full window. The two have moved almost in lockstep, correlation 0.95. SPY is less concentrated, with 38.0% of the fund in its ten largest positions against 52.7%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.