MFS Total Return Bond Fund Class R6 (MRBKX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
9.62
-0.04 (-0.41%)
At close: Mar 11, 2026

MRBKX Holdings Information

MRBKX is a mutual fund with a total of 1076 individual holdings.

Total Holdings
1076
Top 10 Percentage
26.26%
Asset Class
Fixed Income
Fund Category
Intermediate Core-Plus Bond
Assets
8.51B
Forward PE Ratio
n/a

Breakdown by Sector

Top 25 Holdings

No.SymbolName WeightShares
1n/a2 Year Treasury Note Future Mar 265.31%2,135
2n/a5 Year Treasury Note Future Mar 264.20%3,232
3T.4.125 02.15.27United States Treasury Notes 4.13%3.91%320,100,000
4n/aUltra US Treasury Bond Future Mar 262.43%1,737
5T.4.75 11.15.43United States Treasury Bonds 4.75%2.14%177,950,000
6T.4.25 06.30.29United States Treasury Notes 4.25%2.04%167,000,000
7T.4.25 02.15.54United States Treasury Bonds 4.25%2.01%183,300,000
8T.4.25 11.15.34United States Treasury Notes 4.25%1.91%157,500,000
9T.4.375 08.15.43United States Treasury Bonds 4.38%1.18%101,800,000
10T.4.875 10.31.28United States Treasury Notes 4.88%1.13%90,926,000
11FR.SD8199Federal Home Loan Mortgage Corp. 2%1.10%112,677,949
12T.4.5 02.15.44United States Treasury Bonds 4.5%1.07%90,700,000
13T.4.5 11.15.54United States Treasury Bonds 4.5%1.00%88,800,000
14T.3.875 08.15.34United States Treasury Notes 3.88%0.88%74,000,000
15T.1.625 11.15.50United States Treasury Bonds 1.63%0.83%132,800,000
16T.4.125 07.31.28United States Treasury Notes 4.13%0.78%64,200,000
17T.4 11.15.35United States Treasury Notes 4%0.73%62,300,000
18T.3.625 08.31.30United States Treasury Notes 3.63%0.69%57,000,000
19T.3.375 12.31.27United States Treasury Notes 3.38%0.68%57,200,000
20T.1.375 11.15.40United States Treasury Bonds 1.38%0.57%74,100,000
21NTT.5.502 07.16.35 144ANTT Finance Corp 5.5%0.56%45,382,000
22MQGAU.V4.442 06.21.33 144AMacquarie Group Ltd. 4.44%0.56%47,217,000
23T.1.75 08.15.41United States Treasury Bonds 1.75%0.55%67,500,000
24T.2.375 02.15.42United States Treasury Bonds 2.38%0.55%61,700,000
25T.2.875 05.15.43United States Treasury Bonds 2.88%0.55%58,777,000
Showing 25 of 1076 holdings
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As of Jan 31, 2026