MFS Total Return Bond R6 (MRBKX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
9.41
-0.03 (-0.32%)
At close: Aug 10, 2026

MRBKX Holdings Information

MRBKX is a mutual fund with a total of 1083 individual holdings.

Total Holdings
1083
Top 10 Percentage
25.17%
Asset Class
Fixed Income
Fund Category
Intermediate Core-Plus Bond
Assets
8.09B
Forward PE Ratio
n/a

Breakdown by Asset Class

Top 25 Holdings

No.SymbolName WeightShares
1n/a2 Year Treasury Note Future Sept 265.60%2,231
2n/a5 Year Treasury Note Future Sept 265.48%4,207
3n/aUltra US Treasury Bond Future Sept 262.46%1,737
4T.4.75 11.15.43United States Treasury Bonds 4.75%2.14%177,950,000
5T.4.25 06.30.29United States Treasury Notes 4.25%2.04%167,000,000
6T.4.25 02.15.54United States Treasury Bonds 4.25%2.03%183,300,000
7n/aUltra 10 Year US Treasury Note Future Sept 261.86%1,362
8T.4.25 11.15.34United States Treasury Notes 4.25%1.24%102,500,000
9T.4.375 08.15.43United States Treasury Bonds 4.38%1.19%101,800,000
10T.4.5 11.15.54United States Treasury Bonds 4.5%1.14%100,050,000
11T.4.875 10.31.28United States Treasury Notes 4.88%1.13%90,926,000
12FR.SD8199Federal Home Loan Mortgage Corp. 2%1.07%109,584,239
13T.4.5 02.15.44United States Treasury Bonds 4.5%1.07%90,700,000
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%0.85%132,800,000
16T.4.125 07.31.28United States Treasury Notes 4.13%0.79%64,200,000
17n/aCurrency Cash CASH_USD0.79%64,085,920
18T.4.125 02.15.27United States Treasury Notes 4.13%0.78%63,100,000
19T.3.625 08.31.30United States Treasury Notes 3.63%0.69%57,000,000
20T.1.375 11.15.40United States Treasury Bonds 1.38%0.58%74,100,000
21MQGAU.V4.442 06.21.33 144AMacquarie Group Ltd. 4.44%0.56%47,217,000
22T.1.75 08.15.41United States Treasury Bonds 1.75%0.56%67,500,000
23T.2.375 02.15.42United States Treasury Bonds 2.38%0.55%61,700,000
24T.2.875 05.15.43United States Treasury Bonds 2.88%0.55%58,777,000
25CQP.5.55 10.30.35Cheniere Energy Partners Lp 5.55%0.55%44,143,000
Showing 25 of 1083 holdings
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As of Jun 30, 2026