MFS Total Return Bond Fund (MRBCX) is an MF managed by Independent / Boutique. Its largest position is MFS INSTITUTIONAL MONEY MARKET PORTFOLIO (null), representing 1.53% of fund assets.
MFS Total Return Bond Fund Portfolio Holdings
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- MRBCX
- Type:
- MF
- Manager:
- Independent / Boutique
- Total Assets:
- —
- Report Date:
- Apr 30, 2026
- Filing Date:
- Jun 29, 2026
| Holding | Weight | Market Value | Shares |
|---|---|---|---|
|
-
MFS INSTITUTIONAL MONEY MARKET PORTFOLIO
|
1.53% | $126,454,297.62 | 126,441,653 |
|
-
FREDDIE MAC
|
1.08% | $89,192,327.33 | 110,943,982 |
|
-
LOANCORE 2021-CRE6 ISSUER, LTD.
|
0.52% | $42,901,751.17 | 42,852,000 |
|
-
ARBOR REALTY COLLATERALIZED LOAN OBLIGATION LTD
|
0.49% | $40,620,190.07 | 40,620,500 |
|
-
LOANCORE 2018-CRE1 ISSUER, LTD.
|
0.48% | $39,817,923.44 | 39,804,000 |
|
-
BXMT LTD.
|
0.46% | $37,848,816.31 | 38,262,000 |
|
-
UNIFORM MORTGAGE-BACKED SECURITIES
|
0.42% | $34,555,547.22 | 41,275,000 |
|
-
NEW RESIDENTIAL MORTGAGE LOAN TRUST
|
0.42% | $34,485,825.79 | 34,384,046 |
|
-
BLACK DIAMOND CLO LTD.
|
0.41% | $34,056,338.96 | 34,041,667 |
|
-
UBS COMMERCIAL MORTGAGE TRUST
|
0.39% | $32,550,721.50 | 33,000,000 |
|
-
VENTURE CLO 43 LIMITED
|
0.35% | $28,656,064.99 | 28,707,969 |
|
-
ARDN 2025-ARCP MORTGAGE TRUST
|
0.34% | $28,391,869.69 | 28,383,000 |
|
-
COMM MORTGAGE TRUST
|
0.32% | $26,480,224.55 | 26,790,000 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.32% | $26,285,046.21 | 30,657,065 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.31% | $25,889,361.49 | 26,638,649 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.31% | $25,395,881.06 | 28,487,158 |
|
-
GNMAII 30YR TBA 3.5% MAY 26
|
0.30% | $25,034,956.96 | 27,700,000 |
|
-
WELLS FARGO COMMERCIAL MORTGAGE TRUST
|
0.30% | $24,925,805.60 | 25,027,917 |
|
-
DEEPHAVEN RESIDENTIAL MORTGAGE TRUST
|
0.29% | $24,049,070.83 | 23,863,077 |
|
-
BLACK DIAMOND CLO LTD.
|
0.29% | $23,914,723.37 | 23,878,452 |
|
-
ACREC LLC
|
0.29% | $23,752,141.05 | 23,763,500 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.28% | $23,412,148.33 | 23,334,433 |
|
-
AMERICAN CREDIT ACCEPTANCE RECEIVABLES TRUST
|
0.28% | $23,394,634.64 | 23,369,055 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.28% | $23,061,975.63 | 22,975,592 |
|
-
BANK
|
0.28% | $22,856,049.72 | 21,951,777 |
|
-
BrightSpire Capital, Inc.
|
0.27% | $22,385,427.58 | 22,343,500 |
|
-
AREIT CRE TRUST
|
0.26% | $21,593,894.53 | 21,646,489 |
|
-
FREDDIE MAC
|
0.26% | $21,241,873.27 | 21,126,122 |
|
-
ACRES PLC
|
0.25% | $21,026,749.60 | 20,973,000 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.25% | $20,747,947.93 | 20,709,139 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.25% | $20,602,848.01 | 20,521,000 |
|
-
NEW RESIDENTIAL MORTGAGE LOAN TRUST 2020-1
|
0.25% | $20,598,032.39 | 20,750,177 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.25% | $20,402,762.21 | 20,396,684 |
|
-
COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES
|
0.24% | $20,079,525.01 | 19,885,000 |
|
-
NEUBERGER BERMAN CLO XVI-S LTD.
|
0.24% | $20,050,980.00 | 20,000,000 |
|
-
CANTOR COMMERCIAL REAL ESTATE LENDING
|
0.24% | $19,790,592.36 | 20,960,656 |
|
-
RATE MORTGAGE TRUST
|
0.24% | $19,589,162.67 | 19,471,547 |
|
-
ANGEL OAK MORTGAGE TRUST 2024- AOMT 2024 3 A1 144A
|
0.24% | $19,453,404.55 | 19,408,209 |
|
-
MORGAN STANLEY RESIDENTIAL MORTGAGE LOAN TRUST 2026-NQM3
|
0.23% | $19,314,979.15 | 19,312,973 |
|
-
FEDERAL NATIONAL MORTGAGE ASSOCIATION
|
0.23% | $19,008,507.05 | 22,670,227 |
|
-
BANK5 2025-5YR19 BANK5 2025 5YR19 A3
|
0.23% | $18,916,314.89 | 18,557,866 |
|
-
ENTERPRISE FLEET FINANCING LLC
|
0.23% | $18,867,223.55 | 18,885,000 |
|
-
GOVERNMENT NATIONAL MORTGAGE A
|
0.22% | $18,548,886.77 | 22,535,108 |
|
-
MF1 MULTIFAMILY HOUSING MORTGAGE LOAN TRUST
|
0.22% | $18,544,941.54 | 18,526,119 |
|
-
SIGNAL PEAK CLO, LLC
|
0.22% | $18,491,915.50 | 18,500,000 |
|
-
KKR STATIC CLO LTD.
|
0.22% | $18,455,291.71 | 18,455,587 |
|
-
BAIN CAPITAL CREDIT CLO LTD.
|
0.22% | $18,244,098.79 | 18,243,515 |
|
-
UBS COMMERCIAL MORTGAGE TRUST
|
0.22% | $18,111,469.48 | 18,388,578 |
|
-
ANGEL OAK MORTGAGE TRUST
|
0.21% | $17,693,360.67 | 17,595,766 |
|
-
GOVERNMENT NATIONAL MORTGAGE ASSOCIATION
|
0.21% | $17,636,273.62 | 20,569,683 |
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