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Super Investors MFS Total Return Bond Fund

MFS Total Return Bond Fund

Mfs Series Trust Ix · net assets $8.09B · 1082 holdings as of July 31, 2026. Monthly N-PORT disclosure: the full book, not just equities.

Asset mix

DBT: 59.1% · ABS-MBS: 25.3% · ABS-CBDO: 11.8% · STIV: 2.2% · ABS-O: 1.7%

Financial position

Total assets
$8.22B
Total liabilities
$129M
Net assets
$8.09B
Assets attributable to miscellaneous securities
$0
Assets invested in controlled foreign corporations
$0
Borrowings payable within one year
$0
Payable to controlled companies within one year
$0
Payable to other affiliates within one year
$0
Other liabilities payable within one year
$0
Borrowings payable after one year
$0
Payable to controlled companies after one year
$0
Payable to other affiliates after one year
$0
Other liabilities payable after one year
$0
Payables for delayed-delivery investments
$97.3M
Payables for standby commitments
$0
Liquidation preference of outstanding preferred stock
$0
Cash not reported in Parts C or D
$2.8M

Monthly flows and gains

Month 1 Month 2 Month 3
Sales $102M $96.2M $154M
Reinvestment $23.9M $25M $24.9M
Redemptions $166M $145M $148M
Net realized gain (non-derivative) $834K $-10.4M $-1.11M
Net unrealized appreciation (non-derivative) $895K $5.83M $-113M

The three months of the reporting period, as filed; month 3 ends July 31, 2026.

Credit spread risk (change in value per 1bp spread move)

Tenor Investment grade Non-investment grade
3 months $-11.2K $-3.64K
1 year $-245K $-90.6K
5 years $-717K $-137K
10 years $-566K $-37.7K
30 years $-183K $-7.94K

Filing details

Registrant
Mfs Series Trust Ix
Registrant CIK
63075
Registrant LEI
549300IJONSVWD5I9F62
Series
MFS Total Return Bond Fund
Series ID
S000002497
Series LEI
FJAEEQMSDDUK9QL2E558
SEC file number
811-02464
Address
111 Huntington Avenue, Boston, US-MA, 02199, US
Phone
617-954-5000
Form
NPORT-P
Filed
September 28, 2026
Report period ends
April 30, 2027
Report month ends
July 31, 2026
Accession number
000207169126023475
Holding Value % of net assets
Mfs Institutional Money Market Portfolio STIV $176M 2.17%
United States Of America DBT $168M 2.08%
United States Of America DBT $167M 2.06%
United States Of America DBT $156M 1.92%
United States Of America DBT $99.7M 1.23%
United States Of America DBT $92M 1.14%
United States Of America DBT $92M 1.14%
United States Of America DBT $88.6M 1.10%
Fhlmc Pool ABS-MBS $85.3M 1.05%
United States Of America DBT $83M 1.03%
United States Of America DBT $70.3M 0.87%
United States Of America DBT $65.7M 0.81%
United States Of America DBT $64M 0.79%
United States Of America DBT $63.1M 0.78%
United States Of America DBT $61.5M 0.76%
Fnma Or Fhlmc ABS-MBS $61.4M 0.76%
United States Of America DBT $55.4M 0.68%
United States Of America DBT $46.1M 0.57%
Macquarie Group Ltd. DBT $45.1M 0.56%
Cheniere Energy Partners LP DBT $43.9M 0.54%
United States Of America DBT $43.5M 0.54%
United States Of America DBT $43.3M 0.54%
United States Of America DBT $43.2M 0.53%
Wells Fargo & Co. DBT $41.9M 0.52%
Bank Of America Corp. DBT $40.4M 0.50%
Arbor Realty Commercial Real Estate Notes Ltd. ABS-CBDO $40.4M 0.50%
Loancore Issuer LLC ABS-MBS $39.8M 0.49%
United States Of America DBT $38.3M 0.47%
Bxmt Ltd. ABS-CBDO $38.2M 0.47%
Capital One Financial Corp. DBT $36.7M 0.45%
Bank Of America Corp. DBT $36.6M 0.45%
Mf1 LLC ABS-CBDO $34.2M 0.42%
Sumitomo Mitsui Financial Group, Inc. DBT $34.1M 0.42%
Black Diamond Clo Ltd. ABS-CBDO $34.1M 0.42%
Iron Mountain, Inc. DBT $34M 0.42%
Loancore Issuer Ltd. ABS-CBDO $33.4M 0.41%
Aspire Mortgage Trust ABS-MBS $33M 0.41%
Penske Automotive Group, Inc. DBT $33M 0.41%
Transdigm, Inc. DBT $32.5M 0.40%
Ubs Commercial Mortgage Trust ABS-MBS $32.5M 0.40%
Plains All American Pipeline LP DBT $31.8M 0.39%
New Residential Mortgage Loan Trust ABS-MBS $31.7M 0.39%
Elmwood Clo Viii Ltd. ABS-CBDO $31.4M 0.39%
Enel Finance International Nv DBT $29.7M 0.37%
Angel Oak Mortgage Trust ABS-MBS $29.2M 0.36%
Quikrete Holdings, Inc. DBT $29.1M 0.36%
Paychex, Inc. DBT $29M 0.36%
Venture 43 Clo Ltd. ABS-CBDO $28.6M 0.35%
Qxo Building Products, Inc. DBT $28.5M 0.35%
Ardn Mortgage Trust ABS-MBS $28.4M 0.35%
United States Of America DBT $28.4M 0.35%
Sammons Financial Group, Inc. DBT $28.2M 0.35%
Mitsubishi Ufj Financial Group, Inc. DBT $27.9M 0.35%
Jpmorgan Chase & Co. DBT $27.8M 0.34%
Ubs Group Ag DBT $27.3M 0.34%
Eni Spa DBT $27.1M 0.33%
Energy Transfer LP DBT $26.9M 0.33%
Charles Schwab Corp. (the) DBT $26.7M 0.33%
Commercial Mortgage Trust ABS-MBS $26.5M 0.33%
Bat Capital Corp. DBT $26M 0.32%

Showing top 60 of 1082 holdings.

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