- ISIN
- US5529891054
- CUSIP
- 552989105
- Issuer
- MFS
- Inception Date
- Oct 29, 1987
- Category
- Intermediate Core-Plus Bond
- 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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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%
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%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.22% | 1.39% | -1.77% | 0.41% | 0.41% | -0.00% | 0.63% | ||||||
| 2025 | 0.60% | 2.12% | -0.27% | 0.07% | -0.27% | 1.76% | 0.05% | 0.90% | 1.23% | 0.55% | 0.55% | -0.12% | 7.37% |
| 2024 | 0.07% | -1.10% | 0.92% | -2.13% | 1.64% | 0.94% | 2.14% | 1.43% | 1.41% | -2.05% | 1.10% | -1.59% | 2.66% |
| 2023 | 3.80% | -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
- R²
- 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.
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.
| MFIOX | Benchmark | Difference | |
|---|---|---|---|
| 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.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 1mo | 2y 11mo | 4y 1moSep 2021 - Oct 2025 |
Financial crisis2007–2009 | -15.93%Nov 2008 | 5mo 18d | 8mo 2d | 1y 1moJun 2008 - Jul 2009 |
COVID crash2020 | -14.29%Mar 2020 | 14d | 3mo 18d | 4mo 2dMar 2020 - Jul 2020 |
1998 correction1998 | -10.87%Sep 1998 | 4mo 29d | 7mo 19d | 1y 13dApr 1998 - May 1999 |
1995 pullback1995 | -9.66%Jan 1995 | 11mo 11d | 3mo 17d | 1y 2moFeb 1994 - Apr 1995 |
Drawdown Indicators
| MFIOX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest 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 DrawdownCurrent decline from peak | -0.97% | -1.80% | +0.83% |
Average DrawdownAverage peak-to-trough decline | -2.18% | -10.71% | +8.53% |
Ulcer IndexDepth 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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