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Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

MFS Corporate Bond Fund

MBRRX | Fund

$12.40

$4.38 B

3.91%

$0.49

1.02%

Vitals

YTD Return

0.5%

1 yr return

5.5%

3 Yr Avg Return

5.0%

5 Yr Avg Return

0.2%

Net Assets

$4.38 B

Holdings in Top 10

7.9%

52 WEEK LOW AND HIGH

$12.4
N/A
N/A

Expenses

OPERATING FEES

Expense Ratio 1.02%

SALES FEES

Front Load N/A

Deferred Load N/A

TRADING FEES

Turnover 37.00%

Redemption Fee N/A

Min Investment

Standard (Taxable)

$0

IRA

N/A

Fund Classification

Fund Type

Open End Mutual Fund

Name

As of 06/01/2026

Price

Aum/Mkt Cap

YIELD

Annualized forward dividend yield. Multiplies the most recent dividend payout amount by its frequency and divides by the previous close price.

Exp Ratio

Expense ratio is the fund’s total annual operating expenses, including management fees, distribution fees, and other expenses, expressed as a percentage of average net assets.

Watchlist

MFS Corporate Bond Fund

MBRRX | Fund

$12.40

$4.38 B

3.91%

$0.49

1.02%

MBRRX - Profile

Distributions

  • YTD Total Return 0.5%
  • 3 Yr Annualized Total Return 5.0%
  • 5 Yr Annualized Total Return 0.2%
  • Capital Gain Distribution Frequency Annually
  • Net Income Ratio 2.18%
DIVIDENDS
  • Dividend Yield 3.9%
  • Dividend Distribution Frequency Monthly

Fund Details

  • Legal Name
    MFS Corporate Bond Fund
  • Fund Family Name
    MFS Funds
  • Inception Date
    Oct 31, 2003
  • Shares Outstanding
    N/A
  • Share Class
    R2
  • Currency
    USD
  • Domiciled Country
    US
  • Manager
    Alexander Mackey

Fund Description

MFS (Massachusetts Financial Services Company, the fund's investment adviser) normally invests at least 80% of the fund’s net assets in corporate debt instruments. Corporate debt instruments are debt instruments issued by corporations or similar entities. MFS may also invest the fund's assets in U.S. Government securities.

MFS invests the majority of the fund’s assets in investment grade quality debt instruments, but may also invest the fund’s assets in below investment grade quality debt instruments.

MFS may invest the fund’s assets in foreign securities.

MFS normally invests the fund's assets across different industries and sectors, but MFS may invest a significant percentage of the fund's assets in issuers in a single industry or sector.

While MFS may use derivatives for any investment purpose, to the extent MFS uses derivatives, MFS expects to use derivatives primarily to increase or decrease exposure to a particular market, segment of the market, or security, to increase or decrease interest rate or currency exposure, or as alternatives to direct investments. Derivatives include futures, forward contracts, options, and swaps.

MFS uses an active bottom-up investment approach to buying and selling investments for the fund. Investments are selected primarily based on fundamental analysis of individual instruments and their issuers. Quantitative screening tools that systematically evaluate instruments may also be considered. In structuring the fund, MFS also considers top-down factors.

For purposes of the fund's 80% policy, net assets include the amount of any borrowings for investment purposes.

Read More

MBRRX - Performance

Return Ranking - Trailing

Period MBRRX Return Category Return Low Category Return High Rank in Category (%)
YTD 0.5% -1.0% 5.4% 37.18%
1 Yr 5.5% 2.9% 11.3% 61.54%
3 Yr 5.0%* 3.0% 9.3% 64.10%
5 Yr 0.2%* -3.3% 24.8% 71.61%
10 Yr 2.3%* 0.0% 14.8% 79.25%

* Annualized

Return Ranking - Calendar

Period MBRRX Return Category Return Low Category Return High Rank in Category (%)
2025 2.6% -1.1% 5.4% 58.33%
2024 -1.8% -8.1% 3.0% 44.23%
2023 4.7% -5.6% 6.3% 27.56%
2022 -19.2% -28.7% 142.1% 69.68%
2021 -6.8% -12.3% 4.9% 92.76%

Total Return Ranking - Trailing

Period MBRRX Return Category Return Low Category Return High Rank in Category (%)
YTD 0.5% -1.0% 5.4% 37.18%
1 Yr 5.5% 2.9% 11.3% 61.54%
3 Yr 5.0%* 3.0% 9.3% 64.10%
5 Yr 0.2%* -3.3% 24.8% 71.61%
10 Yr 2.3%* 0.0% 14.8% 79.25%

* Annualized

Total Return Ranking - Calendar

Period MBRRX Return Category Return Low Category Return High Rank in Category (%)
2025 7.2% 5.5% 12.2% 78.85%
2024 2.4% -2.3% 12.7% 67.95%
2023 9.0% 2.8% 12.9% 28.85%
2022 -16.7% -25.6% 151.8% 83.23%
2021 -1.6% -3.0% 7.5% 86.18%

NAV & Total Return History

MBRRX - Holdings

Concentration Analysis

MBRRX Category Low Category High MBRRX % Rank
Net Assets 4.38 B 35.3 M 68.1 B 19.23%
Number of Holdings 429 55 11296 70.51%
Net Assets in Top 10 355 M -29.6 M 3.4 B 26.92%
Weighting of Top 10 7.86% 1.5% 143.6% 81.41%

Top 10 Holdings

  1. MFS Institutional Money Market Portfolio, Class A 2.23%
  2. UBS Group AG 0.76%
  3. JPMorgan Chase Co. 0.74%
  4. Boeing Co. (The) 0.73%
  5. Charles Schwab Corp. (The) 0.61%
  6. Bermuda Government Bond 0.57%
  7. Morgan Stanley 0.57%
  8. Sumitomo Mitsui Financial Group, Inc. 0.56%
  9. Maxam Prill Sarl 0.55%
  10. U.S. Treasury Bonds 0.54%

Asset Allocation

Weighting Return Low Return High MBRRX % Rank
Bonds 		97.50% 0.00% 136.47% 39.74%
Convertible Bonds 		6.60% 0.00% 78.47% 25.00%
Cash 		2.60% -43.80% 46.78% 47.44%
Stocks 		0.00% 0.00% 94.86% 78.85%
Preferred Stocks 		0.00% 0.00% 9.18% 82.69%
Other 		-0.10% -3.51% 14.43% 91.67%

Bond Sector Breakdown

Weighting Return Low Return High MBRRX % Rank
Corporate 		74.94% 41.80% 99.52% 77.56%
Government 		20.45% 0.00% 25.63% 8.97%
Cash & Equivalents 		2.23% 0.00% 46.78% 42.31%
Securitized 		1.78% 0.00% 23.18% 32.69%
Municipal 		1.15% 0.00% 3.04% 5.13%
Derivative 		-0.11% -4.04% 3.85% 85.26%

Bond Geographic Breakdown

Weighting Return Low Return High MBRRX % Rank
US 		97.50% 0.00% 102.32% 36.54%
Non US 		0.00% 0.00% 52.18% 85.26%

MBRRX - Expenses

Operational Fees

MBRRX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Expense Ratio 1.02% 0.03% 3.22% 24.68%
Management Fee 0.38% 0.00% 1.35% 67.95%
12b-1 Fee 0.50% 0.00% 1.00% 60.29%
Administrative Fee N/A 0.02% 0.45% N/A

Sales Fees

MBRRX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Front Load N/A 1.00% 4.75% N/A
Deferred Load N/A 1.00% 4.00% N/A

Trading Fees

MBRRX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Max Redemption Fee N/A 1.00% 2.00% N/A

Related Fees

Turnover provides investors a proxy for the trading fees incurred by mutual fund managers who frequently adjust position allocations. Higher turnover means higher trading fees.

MBRRX Fees (% of AUM) Category Return Low Category Return High Rank in Category (%)
Turnover 37.00% 0.00% 182.00% 29.22%

MBRRX - Distributions

Dividend Yield Analysis

MBRRX Category Low Category High MBRRX % Rank
Dividend Yield 3.91% 0.00% 6.00% 68.59%

Dividend Distribution Analysis

MBRRX Category Low Category High Category Mod
Dividend Distribution Frequency Monthly Monthly Monthly Monthly

Net Income Ratio Analysis

MBRRX Category Low Category High MBRRX % Rank
Net Income Ratio 2.18% 0.38% 5.93% 57.14%

Capital Gain Distribution Analysis

MBRRX Category Low Category High Capital Mode
Capital Gain Distribution Frequency Annually Annually Annually Annually

Distributions History

View More +

MBRRX - Fund Manager Analysis

Managers

Alexander Mackey

Start Date

Tenure

Tenure Rank

Apr 05, 2017

5.16

5.2%

Alexander M. Mackey, CFA, is an investment officer and fixed income portfolio manager with MFS Investment Management(r) (MFS(r)). He has portfolio management responsibilities on the firm's limited duration and multi-sector fixed income strategies. He also has research analyst responsibilities. Alexander joined MFS in 1998 as a financial control assistant and was promoted to section manager in 2000. He joined the Fixed Income Department as a research associate in 2001 was promoted to fixed income research analyst in 2004. He took on portfolio management responsibilities in 2017. Alexander has a bachelor's degree from Trinity College and holds the Chartered Financial Analyst (CFA) designation. He is a member of the CFA Society of Boston.

Henry Peabody

Start Date

Tenure

Tenure Rank

Dec 31, 2019

2.42

2.4%

Henry Peabody, CFA - Investment Officer - Fixed Income Portfolio Manager - As a Fixed Income Portfolio Manager, responsible for final buy and sell decisions, portfolio construction, risk assessment and cash management. Participates in the research process and strategy discussions. - Joined MFS in 2019 - Previous experience includes 6 years as Vice President, Portfolio Manager and Research Analyst at Eaton Vance Management; 3 years as Vice President, Research Analyst at Merganser Capital Management; 6 years as Research Analyst and Trader at Emerson Investment Management. - Member of several portfolio management teams, primarily focused on US credit investing in core, core plus, global aggregate, global aggregate opportunistic and global credit strategies - Affiliations include Boston Security Analyst's Society, CFA Institute - Boston College, Carroll School of Management, Master of Business Administration - Trinity College, Bachelor of Arts

Tenure Analysis

Category Low Category High Category Average Category Mode
0.33 24.76 6.8 4.41

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