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Super Investors MFS High Income Fund

MFS High Income Fund

Mfs Series Trust Iii · net assets $1.93B · 375 holdings as of July 31, 2026. Monthly N-PORT disclosure: the full book, not just equities.

Asset mix

DBT: 96.3% · STIV: 2.2% · OTHER: 1.5% · EC: 0.0% · ABS-O: 0.0%

Financial position

Total assets
$1.95B
Total liabilities
$18M
Net assets
$1.93B
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
$7.47M
Payables for standby commitments
$0
Liquidation preference of outstanding preferred stock
$0
Cash not reported in Parts C or D
$0

Monthly flows and gains

Month 1 Month 2 Month 3
Sales $12.4M $12.4M $15.5M
Reinvestment $10.4M $9.69M $9.69M
Redemptions $20.9M $20.5M $27.3M
Net realized gain (non-derivative) $-1.4M $-414K $-904K
Net unrealized appreciation (non-derivative) $-6.16M $-7.8M $-14.8M

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 $-137 $-6.24K
1 year $-2.76K $-158K
5 years $-4.33K $-346K
10 years $-770 $-68.6K
30 years $0 $-2.63K

Filing details

Registrant
Mfs Series Trust Iii
Registrant CIK
225604
Registrant LEI
549300V6TTODTL97GD50
Series
MFS High Income Fund
Series ID
S000002427
Series LEI
DMVGFZCV67YA34LSI126
SEC file number
811-02794
Address
111 Huntington Avenue, Boston, US-MA, 02199, US
Phone
617-954-5000
Form
NPORT-P
Filed
September 28, 2026
Report period ends
January 31, 2027
Report month ends
July 31, 2026
Accession number
000207169126023476
Holding Value % of net assets
Mfs Institutional Money Market Portfolio STIV $41.4M 2.15%
Ishares Broad Usd High Yield Corporate Bond ETF OTHER $28.9M 1.50%
Carvana Co. DBT $14.4M 0.75%
Jane Street Group DBT $13.7M 0.71%
Quikrete Holdings, Inc. DBT $13.4M 0.69%
Cco Holdings LLC DBT $12.2M 0.63%
Service Corp. International DBT $11.9M 0.62%
Rb Global Holdings, Inc. DBT $11.8M 0.61%
Transdigm, Inc. DBT $11.5M 0.60%
Hilton Domestic Operating Co., Inc. DBT $11.4M 0.59%
Molina Healthcare, Inc. DBT $11.4M 0.59%
Antero Midstream Partners LP DBT $11.3M 0.58%
Post Holdings, Inc. DBT $11M 0.57%
Albertsons Cos., Inc. DBT $11M 0.57%
Pennymac Financial Services, Inc. DBT $10.7M 0.55%
Fortescue Treasury Pty. Ltd. DBT $10.5M 0.54%
Caci International, Inc. DBT $10.5M 0.54%
Api Group De, Inc. DBT $10.2M 0.53%
Transdigm, Inc. DBT $10.2M 0.53%
1261229 Bc Ltd. DBT $9.89M 0.51%
Venture Global Lng, Inc. DBT $9.82M 0.51%
Churchill Downs, Inc. DBT $9.8M 0.51%
Rhp Hotel Properties LP DBT $9.78M 0.51%
Rocket Cos., Inc. DBT $9.71M 0.50%
Allison Transmission, Inc. DBT $9.71M 0.50%
Tallgrass Energy Partners LP DBT $9.52M 0.49%
Us Foods, Inc. DBT $9.45M 0.49%
PG&E Corp. DBT $9.23M 0.48%
Nrg Energy, Inc. DBT $9.11M 0.47%
Insulet Corp. DBT $8.93M 0.46%
Fair Isaac Corp. DBT $8.9M 0.46%
Usa Compression Partners LP DBT $8.83M 0.46%
Ati, Inc. DBT $8.71M 0.45%
Osaic Holdings, Inc. DBT $8.59M 0.45%
Sunoco LP DBT $8.53M 0.44%
Clean Harbors, Inc. DBT $8.52M 0.44%
Chemours Co. (the) DBT $8.25M 0.43%
Ziggo Bond Co. Bv DBT $8.24M 0.43%
Meridian Arc Holdco LLC DBT $8.14M 0.42%
Ball Corp. DBT $8.14M 0.42%
Nexstar Media, Inc. DBT $7.98M 0.41%
Wyndham Hotels & Resorts, Inc. DBT $7.94M 0.41%
Crc Insurance Group LLC DBT $7.86M 0.41%
Univision Communications, Inc. DBT $7.85M 0.41%
Sv Rno Property Owner 1 LLC DBT $7.82M 0.41%
Black Pearl Compute LLC DBT $7.74M 0.40%
Scih Salt Holdings, Inc. DBT $7.72M 0.40%
Beach Acquisition Bidco LLC DBT $7.69M 0.40%
Magnolia Oil & Gas Operating LLC DBT $7.68M 0.40%
1011778 Bc Ulc DBT $7.59M 0.39%
Park Intermediate Holdings LLC DBT $7.58M 0.39%
Wynn Macau Ltd. DBT $7.51M 0.39%
Viking Ocean Cruises Ship Vii Ltd. DBT $7.42M 0.38%
Scih Salt Holdings, Inc. DBT $7.41M 0.38%
Gulfport Energy Operating Corp. DBT $7.37M 0.38%
Nrg Energy, Inc. DBT $7.35M 0.38%
Oak-eagle Acquireco, Inc. DBT $7.31M 0.38%
Raven Acquisition Holdings LLC DBT $7.3M 0.38%
Zebra Technologies Corp. DBT $7.25M 0.38%
Starwood Property Trust, Inc. DBT $7.25M 0.38%

Showing top 60 of 375 holdings.

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