MRBFX Mutual Fund

MRBFX Mutual Fund

NAV$9.12
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Fund Essentials - as of May 31, 2026

Net Assets
$2.1B
Expense Ratio
0.60%
Dividend Yield (Current)
4.05%
Holdings
1,075
Inception Date
Jan 4, 1999
Fund Family
MFS Investment Management
Investment Style
PRO
Asset Class
PRO
Legal Structure
PRO
Dividend Frequency
Monthly
SEC 30-Day Yield
PRO

Performance

YTD+0.08%
1 Year+2.09%
3 Year+4.56%
5 Year+0.02%
10 Year+1.94%

Asset Allocation

Stocks: 0.58%
Bonds: 98.56%
Cash: 0.87%
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Top Holdings

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TickerNameWeight
-Ust Bond 2Yr Future Sep 30 265.59%
-Ust Bond 5Yr Future Sep 30 265.47%
-Ust Ultra Bond Future Sep 21 262.41%
-Us Treasury Bond 4.75% Nov 15 432.12%
-Us Treasury Note 4.25% Jun 30 292.07%
Top 10 Concentration: 24.53%Report Date: May 31, 2026
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Dividend Summary

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Dividend Yield (Current)
4.05%
Frequency
Monthly
Latest Distribution
$0.02
-

Peer Comparison

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

MRBFX Mutual Fund Overview

MRBFX Mutual Fund (MFS Total Return Bond Fund Class A) is managed by MFS Investment Management with $2.06B in net assets. MRBFX expense ratio is 0.60%, holding 1075 positions across various sectors. Inception date: 1999-01-04.

MRBFX performance shows a YTD return of 0.08%. The 1-year return is 2.09% and the 5-year return is 0.02%. MRBFX dividend yield stands at 4.05%, paid monthly.

MRBFX top holdings include Ust Bond 2Yr Future Sep 30 26 (5.6%), Ust Bond 5Yr Future Sep 30 26 (5.5%), Ust Ultra Bond Future Sep 21 26 (2.4%), Us Treasury Bond 4.75% Nov 15 43 (2.1%), Us Treasury Note 4.25% Jun 30 29 (2.1%). Go to all MRBFX holdings, MRBFX sectors, or MRBFX dividends.

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