MFS Total Return Bond R6 (MRBKX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
9.15
0.00 (0.00%)
At close: Oct 12, 2026

MRBKX Holdings Information

MRBKX is a mutual fund with a total of 1077 individual holdings.

Total Holdings
1077
Top 10 Percentage
25.03%
Asset Class
Fixed Income
Fund Category
Intermediate Core-Plus Bond
Assets
7.78B
Forward PE Ratio
n/a

Breakdown by Asset Class

Top 25 Holdings

No.SymbolName WeightShares
1n/a5 Year Treasury Note Future Dec 265.48%4,207
2n/a2 Year Treasury Note Future Dec 265.02%1,986
3n/aUltra US Treasury Bond Future Dec 262.35%1,737
4T.4.75 11.15.43United States Treasury Bonds 4.75%2.11%177,950,000
5T.4.25 06.30.29United States Treasury Notes 4.25%2.06%167,000,000
6T.4.25 02.15.54United States Treasury Bonds 4.25%1.93%183,300,000
7n/aCurrency Cash CASH_USD1.84%149,115,668
8n/aUltra 10 Year US Treasury Note Future Dec 261.84%1,362
9T.4.25 11.15.34United States Treasury Notes 4.25%1.24%102,500,000
10T.4.875 10.31.28United States Treasury Notes 4.88%1.15%90,926,000
11T.4.375 08.15.43United States Treasury Bonds 4.38%1.14%101,800,000
12T.4.5 11.15.54United States Treasury Bonds 4.5%1.11%100,050,000
13FR.SD8199Federal Home Loan Mortgage Corp. 2%1.05%108,092,520
14T.4.5 02.15.44United States Treasury Bonds 4.5%1.03%90,700,000
15T.3.875 08.15.34United States Treasury Notes 3.88%0.87%74,000,000
16T.1.625 11.15.50United States Treasury Bonds 1.63%0.82%132,800,000
17T.4.125 07.31.28United States Treasury Notes 4.13%0.79%64,200,000
18T.4.125 02.15.27United States Treasury Notes 4.13%0.78%63,100,000
19T.4.875 08.15.45United States Treasury Bonds 4.88%0.76%64,500,000
20FNCL.6 9.11Federal National Mortgage Association 6%0.76%60,725,000
21T.3.625 08.31.30United States Treasury Notes 3.63%0.68%57,000,000
22T.1.375 11.15.40United States Treasury Bonds 1.38%0.58%74,100,000
23MQGAU.V4.442 06.21.33 144AMacquarie Group Ltd. 4.44%0.56%47,217,000
24CQP.5.55 10.30.35Cheniere Energy Partners Lp 5.55%0.55%44,143,000
25T.2.875 05.15.43United States Treasury Bonds 2.88%0.54%58,777,000
Showing 25 of 1077 holdings
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As of Aug 31, 2026