MCBKX Mutual Fund

NAV$9.47

Fund Essentials - as of Jan 31, 2026

Net Assets
$56,849.6
Expense Ratio
0.39%
Dividend Yield (Current)
4.32%
Holdings
297
Inception Date
Jun 22, 2022
Fund Family
MFS Investment Management
Investment Style
PRO
Asset Class
PRO
Legal Structure
PRO
Dividend Frequency
Monthly

Performance

YTD-2.27%
1 Year+3.98%
3 Year+4.47%

Asset Allocation

Bonds: 96.03%
Cash: 4.04%

Price Chart (6M)

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Top Holdings

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TickerNameWeight
T 4.25 06/30/29Treasury Note (Otr) 4.25% Jun 30, 20294.35%
-Mfs Institutional Money Market Portfolio4.17%
T 4.5 04/15/27United States Treasury Notes 4.500% 15-Apr-20273.49%
T 4.5 02/15/44United States Treasury Notes 4.50% Feb 15, 20442.79%
T 2.375 02/15/42US Treasury N/ 2.375 2/422.74%
Top 10 Concentration: 24.86%Report Date: Jan 31, 2026
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Dividend Summary

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Dividend Yield (Current)
4.32%
Frequency
Monthly

Peer Comparison

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

MCBKX Mutual Fund (MFS Core Bond Fund Class R4) is managed by MFS Investment Management with $56,849.6 in net assets. MCBKX expense ratio is 0.39%, holding 297 positions across sectors including Financials, Other, Consumer Staples. Inception date: 2022-06-22.

MCBKX performance shows a YTD return of -2.27%. The 1-year return is 3.98%. MCBKX dividend yield stands at 4.32%, paid monthly.

MCBKX top holdings include Treasury Note (Otr) 4.25% Jun 30, 2029 (4.3%), Mfs Institutional Money Market Portfolio (4.2%), United States Treasury Notes 4.500% 15-Apr-2027 (3.5%), United States Treasury Notes 4.50% Feb 15, 2044 (2.8%), US Treasury N/ 2.375 2/42 (2.7%). View all MCBKX holdings, sector breakdown, or dividend history.

MCBKX can be compared against other funds using the overlap calculator or side-by-side comparison tool. MCBKX alternatives are available via the screener, along with tax-loss harvesting opportunities.