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MFEIX vs. MIUIX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

MFEIX vs. MIUIX

Last updated Jun 24, 2026

MFEIX (MFS Growth I) and MIUIX (MFS Municipal Intermediate Fund) are both mutual funds - MFEIX is a Large Cap Growth Equities fund managed by MFS, while MIUIX is a Municipal Bonds fund managed by MFS. Over the past 5 years, MFEIX returned 12.61%/yr vs 1.47%/yr for MIUIX. At a 0.09 correlation, their price movements are largely independent. MFEIX charges 0.60%/yr vs 0.45%/yr for MIUIX.

Performance

MFEIX vs. MIUIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in MFS Growth I (MFEIX) and MFS Municipal Intermediate Fund (MIUIX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, MFEIX achieves a 3.70% return, which is significantly higher than MIUIX's 1.54% return.

MFEIX

1D
-1.47%
1M
-0.14%
YTD
3.70%
6M
2.62%
1Y
13.33%
3Y*
24.98%
5Y*
12.61%
10Y*
17.81%

MIUIX

1D
-0.11%
1M
1.29%
YTD
1.54%
6M
1.97%
1Y
6.64%
3Y*
4.73%
5Y*
1.47%
10Y*
—
*Multi-year figures are annualized to reflect compound growth (CAGR)

MFEIX vs. MIUIX - Yearly Performance Comparison

2026 (YTD)20252024202320222021
MFEIX
MFS Growth I		3.70%12.34%49.67%36.15%-31.14%15.44%
MIUIX
MFS Municipal Intermediate Fund		1.54%6.64%3.00%5.19%-8.06%-0.17%

Correlation

The correlation between MFEIX and MIUIX is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.12

Correlation (3Y)
Calculated over the trailing 3-year period

0.07

Correlation (5Y)
Calculated over the trailing 5-year period

0.09

Correlation (All Time)
Calculated using the full available price history since May 26, 2021

0.09

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

MFS Growth I

MFS Municipal Intermediate Fund

Often compared with MFEIX:
MFEIX vs. VOOMFEIX vs. QQQMFEIX vs. SPYGMFEIX vs. IWFMFEIX vs. VIIIXMFEIX vs. TBCIXMFEIX vs. QQQM
Often compared with MIUIX:
MIUIX vs. VTEBMIUIX vs. MDIJXMIUIX vs. MFEKXMIUIX vs. MEIAXMIUIX vs. FSMUXMIUIX vs. FHMIXMIUIX vs. BATVX

Return for Risk

MFEIX vs. MIUIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
MFEIX
MFEIX Risk / Return Rank: 1111
Overall Rank
MFEIX Sharpe Ratio Rank: 1111
Sharpe Ratio Rank
MFEIX Sortino Ratio Rank: 1111
Sortino Ratio Rank
MFEIX Omega Ratio Rank: 1111
Omega Ratio Rank
MFEIX Calmar Ratio Rank: 99
Calmar Ratio Rank
MFEIX Martin Ratio Rank: 1010
Martin Ratio Rank
MIUIX
MIUIX Risk / Return Rank: 6868
Overall Rank
MIUIX Sharpe Ratio Rank: 8787
Sharpe Ratio Rank
MIUIX Sortino Ratio Rank: 9191
Sortino Ratio Rank
MIUIX Omega Ratio Rank: 9494
Omega Ratio Rank
MIUIX Calmar Ratio Rank: 3535
Calmar Ratio Rank
MIUIX Martin Ratio Rank: 3333
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

MFEIX vs. MIUIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for MFS Growth I (MFEIX) and MFS Municipal Intermediate Fund (MIUIX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

MFEIXMIUIXDifference
Sharpe ratioReturn per unit of total volatility
0.87
2.62

-1.76

Sortino ratioReturn per unit of downside risk
1.27
4.14

-2.87

Omega ratioGain probability vs. loss probability

1.16

1.69

-0.53

Calmar ratioReturn relative to maximum drawdown

0.84

2.11

-1.27

Martin ratioReturn relative to average drawdown

2.71

7.02

-4.31

MFEIX vs. MIUIX - Sharpe Ratio Comparison

The current MFEIX Sharpe Ratio is 0.87, which is lower than the MIUIX Sharpe Ratio of 2.62. The chart below compares the historical Sharpe Ratios of MFEIX and MIUIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

MFEIX vs. MIUIX - Drawdown Comparison

The maximum MFEIX drawdown since its inception was -72.24%, which is greater than MIUIX's maximum drawdown of -12.91%. Use the drawdown chart below to compare losses from any high point for MFEIX and MIUIX.

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Drawdown Indicators

MFEIXMIUIXDifference

Max Drawdown

Largest peak-to-trough decline

-72.24%

-12.91%

-59.33%

Max Drawdown (1Y)

Largest decline over 1 year

-17.30%

-3.15%

-14.15%

Max Drawdown (3Y)

Largest decline over 3 years

-23.24%

-5.04%

-18.20%

Max Drawdown (5Y)

Largest decline over 5 years

-36.11%

-12.91%

-23.20%

Max Drawdown (10Y)

Largest decline over 10 years

-36.11%

—

—

Current Drawdown

Current decline from peak

-2.77%

-0.86%

-1.91%

Average Drawdown

Average peak-to-trough decline

-23.69%

-3.96%

-19.73%

Ulcer Index

Depth and duration of drawdowns from previous peaks

5.37%

0.95%

+4.42%

Volatility

MFEIX vs. MIUIX - Volatility Comparison

MFS Growth I (MFEIX) has a higher volatility of 6.54% compared to MFS Municipal Intermediate Fund (MIUIX) at 0.70%. This indicates that MFEIX's price experiences larger fluctuations and is considered to be riskier than MIUIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

MFEIXMIUIXDifference

Volatility (1M)

Calculated over the trailing 1-month period

6.54%

0.70%

+5.84%

Volatility (6M)

Calculated over the trailing 6-month period

13.39%

2.03%

+11.36%

Volatility (1Y)

Calculated over the trailing 1-year period

16.83%

2.55%

+14.28%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

22.04%

3.43%

+18.61%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

21.33%

3.41%

+17.92%

MFEIX vs. MIUIX - Expense Ratio Comparison

MFEIX has a 0.60% expense ratio, which is higher than MIUIX's 0.45% expense ratio.

Dividends

MFEIX vs. MIUIX - Dividend Comparison

MFEIX's dividend yield for the trailing twelve months is around 14.46%, more than MIUIX's 3.68% yield.

PositionTTM20252024202320222021202020192018201720162015
MFEIX
MFS Growth I		14.46%14.99%25.47%4.86%1.05%2.76%3.57%1.57%3.78%2.50%1.61%3.65%
MIUIX
MFS Municipal Intermediate Fund		3.68%4.82%3.61%2.39%1.30%0.64%0.00%0.00%0.00%0.00%0.00%0.00%

Frequently Asked Questions

MFEIX and MIUIX have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

MFEIX has higher volatility (6.54%) compared to MIUIX (0.70%). In terms of maximum drawdown, MFEIX dropped -72.24% vs MIUIX's -12.91%.

MIUIX currently has the higher Sharpe Ratio (2.62 vs 0.87), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.

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