MFBKX Mutual Fund

MFBKX Mutual Fund

NAV$12.12
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Fund Essentials - as of Jan 31, 2026

Net Assets
$1.8B
Expense Ratio
0.42%
Dividend Yield (Current)
4.53%
Holdings
429
Inception Date
Jun 1, 2012
Fund Family
MFS Investment Management
Investment Style
PRO
Asset Class
PRO
Legal Structure
PRO
Dividend Frequency
Monthly
SEC 30-Day Yield
PRO

Performance

YTD-0.49%
1 Year+2.71%
3 Year+4.95%
5 Year-0.04%
10 Year+2.63%

Asset Allocation

Bonds: 97.87%
Cash: 2.24%
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Top Holdings

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TickerNameWeight
-Mfs Institutional Money Market Portfolio2.23%
UBS V3.126 08/13/30 Ubs Group Ag 144A 3.13% Aug 13, 20300.76%
JPM V2.545 11/08/32Jpmorgan Chase & Co 2.545 11/08/20320.74%
BA 5.805 05/01/50Boeing Co 5.805%, Due 05/01/20500.73%
-Charles Schwab Corporation 4.914% 14-Nov-2036, 4.91%, 11/14/360.61%
Top 10 Concentration: 7.86%Report Date: Jan 31, 2026
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Dividend Summary

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Dividend Yield (Current)
4.53%
Frequency
Monthly
Latest Distribution
$0.03
-

Peer Comparison

Benchmark
PRO
Peer outperformance: PRO
Category rank: PRO
This Mutual Fund
PRO
Peer Avg
PRO

MFBKX Mutual Fund Overview

MFBKX Mutual Fund (MFS Corporate Bond Fund Class R6) is managed by MFS Investment Management with $1.84B in net assets. MFBKX expense ratio is 0.42%, holding 429 positions across sectors including Financials, Utilities, Industrials. Inception date: 2012-06-01.

MFBKX performance shows a YTD return of -0.49%. The 1-year return is 2.71% and the 5-year return is -0.04%. MFBKX dividend yield stands at 4.53%, paid monthly.

MFBKX top holdings include Mfs Institutional Money Market Portfolio (2.2%), Ubs Group Ag 144A 3.13% Aug 13, 2030 (0.8%), Jpmorgan Chase & Co 2.545 11/08/2032 (0.7%), Boeing Co 5.805%, Due 05/01/2050 (0.7%), Charles Schwab Corporation 4.914% 14-Nov-2036, 4.91%, 11/14/36 (0.6%). Go to all MFBKX holdings, MFBKX sectors, or MFBKX dividends.

MFBKX can be compared against other funds. Use MFBKX overlap to find shared positions, or MFBKX vs another fund for a side-by-side view. MFBKX alternatives are available via the screener, along with tax-loss harvesting opportunities.