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Super Investors Select Bond Portfolio

Select Bond Portfolio

Northwestern Mutual Series Fund Inc · net assets $2.87B · 958 holdings as of June 30, 2026. Monthly N-PORT disclosure: the full book, not just equities.

Asset mix

DBT: 56.2% · ABS-MBS: 37.8% · ABS-O: 6.1%

Financial position

Total assets
$3.04B
Total liabilities
$167M
Net assets
$2.87B
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
$31M
Payables for standby commitments
$0
Liquidation preference of outstanding preferred stock
$0
Cash not reported in Parts C or D
$81.1M

Monthly flows and gains

Month 1 Month 2 Month 3
Sales $17.8M $46M $23.8M
Reinvestment $0 $0 $0
Redemptions $28.7M $18.1M $23.1M
Net realized gain (non-derivative) $-956K $-5.5M $-2.45M
Net unrealized appreciation (non-derivative) $-4.21M $3.92M $-605K

The three months of the reporting period, as filed; month 3 ends June 30, 2026.

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

Tenor Investment grade Non-investment grade
3 months $-1.8K $-14
1 year $-60.1K $-242
5 years $-204K $-746
10 years $-233K $-1.34K
30 years $-109K $-380

Filing details

Registrant
Northwestern Mutual Series Fund Inc
Registrant CIK
742212
Registrant LEI
549300T1UBX7MDSNZA55
Series
Select Bond Portfolio
Series ID
S000000047
Series LEI
03DZ35VFRGD62UKLL347
SEC file number
811-03990
Address
720 E WISCONSIN AVE, MILWAUKEE, US-WI, 53202, US
Phone
414-271-1444
Form
NPORT-P
Filed
August 20, 2026
Report period ends
December 31, 2026
Report month ends
June 30, 2026
Accession number
000141036826083394
Holding Value % of net assets
Umbs, Tba ABS-MBS $55.6M 1.93%
United States Treasury DBT $54.3M 1.89%
United States Treasury DBT $46.9M 1.63%
United States Treasury DBT $45.1M 1.57%
United States Treasury DBT $39.3M 1.37%
United States Treasury DBT $37.8M 1.32%
United States Treasury DBT $35.4M 1.23%
Government National Mortgage Association ABS-MBS $34.9M 1.21%
United States Treasury DBT $33M 1.15%
United States Treasury DBT $29.2M 1.02%
United States Treasury DBT $26.8M 0.93%
United States Treasury DBT $26.2M 0.91%
United States Treasury DBT $25.7M 0.89%
United States Treasury DBT $25M 0.87%
Umbs, Tba ABS-MBS $24.8M 0.86%
United States Treasury DBT $24.6M 0.86%
United States Treasury DBT $24M 0.83%
United States Treasury DBT $23.8M 0.83%
United States Treasury DBT $23.4M 0.81%
Freddie Mac ABS-MBS $23.3M 0.81%
United States Treasury DBT $23.2M 0.81%
United States Treasury DBT $23M 0.80%
United States Treasury DBT $22M 0.77%
United States Treasury DBT $21.4M 0.74%
Government National Mortgage Association ABS-MBS $20.3M 0.71%
Fannie Mae ABS-MBS $19.1M 0.67%
United States Treasury DBT $19M 0.66%
United States Treasury DBT $18.7M 0.65%
United States Treasury DBT $18.5M 0.64%
Freddie Mac ABS-MBS $18.1M 0.63%
Fannie Mae ABS-MBS $17.6M 0.61%
United States Treasury DBT $17.5M 0.61%
Government National Mortgage Association ABS-MBS $16.6M 0.58%
Government National Mortgage Association ABS-MBS $16.2M 0.56%
United States Treasury DBT $15.2M 0.53%
Government National Mortgage Association ABS-MBS $14.5M 0.50%
United States Treasury DBT $14.5M 0.50%
Fannie Mae ABS-MBS $14.1M 0.49%
Umbs, Tba ABS-MBS $14M 0.49%
Government National Mortgage Association ABS-MBS $13.7M 0.48%
United States Treasury DBT $13.3M 0.46%
Fannie Mae ABS-MBS $12.5M 0.43%
Freddie Mac ABS-MBS $12.4M 0.43%
United States Treasury DBT $12M 0.42%
Fannie Mae ABS-MBS $11.8M 0.41%
United States Treasury DBT $11.7M 0.41%
Freddie Mac ABS-MBS $11.4M 0.40%
Government National Mortgage Association ABS-MBS $11.3M 0.39%
Fannie Mae ABS-MBS $11M 0.38%
Morgan Stanley Pvt Bank DBT $10.6M 0.37%
Freddie Mac ABS-MBS $10.5M 0.37%
Fannie Mae ABS-MBS $10.5M 0.36%
Fannie Mae ABS-MBS $10.4M 0.36%
Freddie Mac ABS-MBS $10.2M 0.35%
United States Treasury DBT $9.56M 0.33%
Goldman Sachs Group Inc DBT $9.45M 0.33%
Bank Of America Corp DBT $9.13M 0.32%
United States Treasury DBT $9M 0.31%
Fannie Mae ABS-MBS $8.99M 0.31%
Fannie Mae ABS-MBS $8.81M 0.31%

Showing top 60 of 958 holdings.

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