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ISIN
US5529891054
CUSIP
552989105
Issuer
MFS
Inception Date
Oct 29, 1987
Min. Investment
$1,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

MFIOX Performance Chart

MFS Income Fund (MFIOX) is up 0.6% since the beginning of the year. MFIOX is currently trading at $6 per share. Investors who bought $1,000 worth of MFIOX shares 5 years ago would now be looking at an investment worth $1,028.


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S&P 500 Index

Returns By Period

MFS Income Fund (MFIOX) has returned 0.63% so far this year and 5.31% over the past 12 months. Over the last ten years, MFIOX has returned 2.72% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


MFS Income Fund

1D
0.17%
1M
0.92%
YTD
0.63%
6M
1.01%
1Y
5.31%
3Y*
5.05%
5Y*
0.55%
10Y*
2.72%

Benchmark (S&P 500 Index)

1D
-0.37%
1M
-0.01%
YTD
9.16%
6M
8.64%
1Y
25.22%
3Y*
19.78%
5Y*
11.99%
10Y*
13.88%
*Multi-year figures are annualized to reflect compound growth (CAGR)

MFIOX Monthly Returns History

Based on dividend-adjusted daily data since Oct 29, 1987, MFIOX's average daily return is +0.02%, while the average monthly return is +0.52%. At this rate, an investment would double in approximately 11.1 years.

Historically, 68% of months were positive and 32% were negative. The best month was Feb 1991 with a return of +4.8%, while the worst month was Aug 1998 at -9.1%. The longest winning streak lasted 23 consecutive months, and the longest losing streak was 5 months.

On a daily basis, MFIOX closed higher 36% of trading days. The best single day was Jan 31, 1989 with a return of +3.5%, while the worst single day was Aug 31, 1990 at -4.9%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.22%1.39%-1.77%0.41%0.41%-0.00%0.63%
20250.60%2.12%-0.27%0.07%-0.27%1.76%0.05%0.90%1.23%0.55%0.55%-0.12%7.37%
20240.07%-1.10%0.92%-2.13%1.64%0.94%2.14%1.43%1.41%-2.05%1.10%-1.59%2.66%
20233.80%-2.44%2.08%0.74%-1.26%0.24%0.58%-0.76%-2.32%-1.69%4.76%3.85%7.46%
2022-2.41%-1.15%-2.21%-3.78%0.05%-2.88%2.30%-2.49%-4.46%-1.09%3.65%-0.36%-14.14%
2021-0.35%-1.34%-1.22%1.06%0.34%1.05%1.04%0.04%-0.95%0.03%-0.11%0.16%-0.28%

Benchmark Metrics

MFS Income Fund has an annualized alpha of 6.15%, beta of 0.02, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since October 29, 1987.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (27.71%) than losses (14.12%) - typical of diversified or defensive assets.
  • Beta of 0.02 may look defensive, but with R2 of 0.00 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
  • R2 of 0.00 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
6.15%
Beta
0.02
0.00
Upside Capture
27.71%
Downside Capture
14.12%

Expense Ratio

MFIOX has an expense ratio of 0.73%, placing it in the medium range.


Return for Risk

Risk / Return Rank

MFIOX ranks 30 for risk / return — below 30% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.


MFIOX Risk / Return Rank: 3030
Overall Rank
MFIOX Sharpe Ratio Rank: 3030
Sharpe Ratio Rank
MFIOX Sortino Ratio Rank: 3333
Sortino Ratio Rank
MFIOX Omega Ratio Rank: 3131
Omega Ratio Rank
MFIOX Calmar Ratio Rank: 2929
Calmar Ratio Rank
MFIOX Martin Ratio Rank: 2626
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.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for MFS Income Fund (MFIOX) and compare them to S&P 500 Index.

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.


MFIOXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.56

Sortino ratioReturn per unit of downside risk

-0.53

Omega ratioGain probability vs. loss probability

1.27

1.37

-0.09

Calmar ratioReturn relative to maximum drawdown

1.89

2.78

-0.89

Martin ratioReturn relative to average drawdown

5.80

12.44

-6.64

Dividends

Dividend History

MFS Income Fund provided a 4.70% dividend yield over the last twelve months, with an annual payout of $0.28 per share.


2.50%3.00%3.50%4.00%4.50%5.00%$0.00$0.05$0.10$0.15$0.20$0.25$0.3020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.28$0.28$0.30$0.28$0.13$0.23$0.20$0.21$0.19$0.22$0.23$0.27

Dividend yield

4.70%4.70%5.04%4.72%2.24%3.29%2.80%3.04%3.07%3.26%3.61%4.35%

Monthly Dividends

The table displays the monthly dividend distributions for MFS Income Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.02$0.02$0.02$0.02$0.02$0.00$0.12
2025$0.03$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.28
2024$0.02$0.02$0.02$0.02$0.02$0.03$0.03$0.03$0.03$0.03$0.03$0.03$0.30
2023$0.02$0.02$0.02$0.02$0.02$0.02$0.02$0.03$0.02$0.02$0.02$0.02$0.28
2022$0.01$0.01$0.01$0.01$0.01$0.00$0.00$0.02$0.00$0.02$0.02$0.02$0.13
2021$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.01$0.08$0.23

Drawdowns

Drawdowns Chart

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.


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Worst Drawdowns

The table below displays the maximum drawdowns of the MFS Income Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the MFS Income Fund was 19.07%, occurring on Oct 24, 2022. Recovery took 745 trading sessions.

The current MFS Income Fund drawdown is 0.97%.


Related event

Drawdown

Fall

Recovery

Underwater

Bear market2022
-19.07%Oct 2022
1y 1mo2y 11mo
4y 1moSep 2021 - Oct 2025
Financial crisis2007–2009
-15.93%Nov 2008
5mo 18d8mo 2d
1y 1moJun 2008 - Jul 2009
COVID crash2020
-14.29%Mar 2020
14d3mo 18d
4mo 2dMar 2020 - Jul 2020
1998 correction1998
-10.87%Sep 1998
4mo 29d7mo 19d
1y 13dApr 1998 - May 1999
1995 pullback1995
-9.66%Jan 1995
11mo 11d3mo 17d
1y 2moFeb 1994 - Apr 1995

Drawdown Indicators


MFIOXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-19.07%

-56.78%

+37.71%

Max Drawdown (1Y)

Largest decline over 1 year

-2.81%

-9.10%

+6.29%

Max Drawdown (3Y)

Largest decline over 3 years

-5.88%

-18.90%

+13.02%

Max Drawdown (5Y)

Largest decline over 5 years

-19.07%

-25.43%

+6.36%

Max Drawdown (10Y)

Largest decline over 10 years

-19.07%

-33.92%

+14.85%

Current Drawdown

Current decline from peak

-0.97%

-1.80%

+0.83%

Average Drawdown

Average peak-to-trough decline

-2.18%

-10.71%

+8.53%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.92%

2.03%

-1.11%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

Build a portfolio with MFIOX

Add MFS Income Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

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