MUSEX vs. SPY
Compare and contrast key facts about MFS Blended Research Core Equity Fund (MUSEX) and State Street SPDR S&P 500 ETF (SPY).
MUSEX is managed by MFS. It was launched on Jan 14, 1994. SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993.
Performance
MUSEX vs. SPY - Performance Comparison
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MUSEX vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MUSEX MFS Blended Research Core Equity Fund | -6.06% | 16.10% | 25.17% | 28.30% | -16.02% | 29.24% | 15.47% | 28.80% | -7.82% | 18.95% |
SPY State Street SPDR S&P 500 ETF | -4.37% | 17.72% | 24.89% | 26.18% | -18.18% | 28.73% | 18.33% | 31.22% | -4.57% | 21.71% |
Returns By Period
In the year-to-date period, MUSEX achieves a -6.06% return, which is significantly lower than SPY's -4.37% return. Over the past 10 years, MUSEX has underperformed SPY with an annualized return of 12.76%, while SPY has yielded a comparatively higher 13.98% annualized return.
MUSEX
- 1D
- -0.24%
- 1M
- -7.50%
- YTD
- -6.06%
- 6M
- -4.63%
- 1Y
- 14.03%
- 3Y*
- 18.00%
- 5Y*
- 11.85%
- 10Y*
- 12.76%
SPY
- 1D
- 2.91%
- 1M
- -4.94%
- YTD
- -4.37%
- 6M
- -1.82%
- 1Y
- 17.59%
- 3Y*
- 18.19%
- 5Y*
- 11.69%
- 10Y*
- 13.98%
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MUSEX vs. SPY - Expense Ratio Comparison
MUSEX has a 0.49% expense ratio, which is higher than SPY's 0.09% expense ratio.
Return for Risk
MUSEX vs. SPY — Risk / Return Rank
MUSEX
SPY
MUSEX vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Blended Research Core Equity Fund (MUSEX) and State Street SPDR S&P 500 ETF (SPY). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| MUSEX | SPY | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.79 | 0.93 | -0.14 |
Sortino ratioReturn per unit of downside risk | 1.24 | 1.45 | -0.22 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.22 | -0.04 |
Calmar ratioReturn relative to maximum drawdown | 0.97 | 1.53 | -0.55 |
Martin ratioReturn relative to average drawdown | 4.64 | 7.30 | -2.66 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| MUSEX | SPY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.79 | 0.93 | -0.14 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.70 | 0.69 | +0.01 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.70 | 0.78 | -0.08 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.50 | 0.56 | -0.06 |
Correlation
The correlation between MUSEX and SPY is 0.95, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
MUSEX vs. SPY - Dividend Comparison
MUSEX's dividend yield for the trailing twelve months is around 7.62%, more than SPY's 1.14% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MUSEX MFS Blended Research Core Equity Fund | 7.62% | 7.15% | 10.44% | 3.91% | 9.26% | 16.18% | 7.12% | 5.19% | 11.98% | 2.04% | 1.20% | 3.32% |
SPY State Street SPDR S&P 500 ETF | 1.14% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Drawdowns
MUSEX vs. SPY - Drawdown Comparison
The maximum MUSEX drawdown since its inception was -54.78%, roughly equal to the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for MUSEX and SPY.
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Drawdown Indicators
| MUSEX | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.78% | -55.19% | +0.41% |
Max Drawdown (1Y)Largest decline over 1 year | -12.58% | -12.05% | -0.53% |
Max Drawdown (5Y)Largest decline over 5 years | -21.87% | -24.50% | +2.63% |
Max Drawdown (10Y)Largest decline over 10 years | -34.60% | -33.72% | -0.88% |
Current DrawdownCurrent decline from peak | -8.60% | -6.24% | -2.36% |
Average DrawdownAverage peak-to-trough decline | -10.64% | -9.09% | -1.55% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.64% | 2.52% | +0.12% |
Volatility
MUSEX vs. SPY - Volatility Comparison
The current volatility for MFS Blended Research Core Equity Fund (MUSEX) is 4.51%, while State Street SPDR S&P 500 ETF (SPY) has a volatility of 5.31%. This indicates that MUSEX experiences smaller price fluctuations and is considered to be less risky than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MUSEX | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.51% | 5.31% | -0.80% |
Volatility (6M)Calculated over the trailing 6-month period | 9.42% | 9.47% | -0.05% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.59% | 19.05% | -0.46% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.00% | 17.06% | -0.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.29% | 17.92% | +0.37% |