MRBGX Mutual Fund

NAV$9.43

Fund Essentials - as of Jan 31, 2026

Net Assets
$1M
Expense Ratio
1.45%
Dividend Yield (Current)
2.89%
Holdings
1,075
Inception Date
Apr 1, 2005
Fund Family
MFS Investment Management
Investment Style
PRO
Asset Class
PRO
Legal Structure
PRO
Dividend Frequency
Monthly
SEC 30-Day Yield
PRO

Performance

YTD+0.56%
1 Year+2.95%
3 Year+3.86%
5 Year-0.49%
10 Year+1.12%

Asset Allocation

Bonds: 98.66%
Cash: 1.10%
Other: 0.24%

Price Chart (6M)

Loading chart data...

Top Holdings

View All →
TickerNameWeight
T 4.125 02/15/27Usa, Notes 4.125% 15Feb20273.85%
T 4.75 11/15/43United States Treasury Note, 4.75%, 11/15/20432.12%
T 4.25 06/30/29Treasury Note (Otr) 4.25% Jun 30, 20292.04%
T 4.25 02/15/54U.S. Treasury Bonds 2054-02-151.97%
T 4.25 11/15/34Treasury Note (Otr) 4.25% Nov 15, 20341.89%
Top 10 Concentration: 17.40%Report Date: Jan 31, 2026
Download all 1075 holdings for MRBGX
CSV export with sector, industry & share changes
Get CSV

Dividend Summary

View Details →
Dividend Yield (Current)
2.89%
Frequency
Monthly
Latest Distribution
$0.01
-

Peer Comparison

Benchmark
PRO
Peer outperformance: PRO
Category rank: PRO
This Mutual Fund
PRO
Peer Avg
PRO
See how MRBGX ranks against its peers
Category rank, peer-average returns and outperformance, updated daily.
$49$29/mo
Claim the $29 launch price
First 500 subscribers, then $49/mo. Cancel anytime. From MarketXLS, trusted since 2014.

MRBGX Mutual Fund Overview

MRBGX Mutual Fund (MFS Total Return Bond Fund Class R1) is managed by MFS Investment Management with $1.0M in net assets. MRBGX expense ratio is 1.45%, holding 1075 positions across sectors including Financials, Other, Energy. Inception date: 2005-04-01.

MRBGX performance shows a YTD return of 0.56%. The 1-year return is 2.95% and the 5-year return is -0.49%. MRBGX dividend yield stands at 2.89%, paid monthly.

MRBGX top holdings include Usa, Notes 4.125% 15Feb2027 (3.9%), United States Treasury Note, 4.75%, 11/15/2043 (2.1%), Treasury Note (Otr) 4.25% Jun 30, 2029 (2.0%), U.S. Treasury Bonds 2054-02-15 (2.0%), Treasury Note (Otr) 4.25% Nov 15, 2034 (1.9%). View all MRBGX holdings, sector breakdown, or dividend history.

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