NORTHWESTERN MUTUAL SERIES FUND INC

NORTHWESTERN MUTUAL SERIES FUND INC (CIK 742212) is an SEC-registered fund company with 29 reporting fund series and $31.7B in net assets as of 2026-03-31.

Registrant

Fund series (29)

Showing 25 of 29 series.

SeriesNet assets
Index 500 Stock Portfolio$7.1B
Select Bond Portfolio$2.8B
International Equity Portfolio$2.3B
Active/Passive Balanced Portfolio$1.9B
Index 400 Stock Portfolio$1.5B
Focused Appreciation Portfolio$1.4B
Multi-Sector Bond Portfolio$1.4B
Growth Stock Portfolio$1.3B
Emerging Markets Equity Portfolio$1.3B
Domestic Equity Portfolio$1.2B
International Growth Portfolio$1.1B
Research International Core Portfolio$980.3M
Mid Cap Growth Stock Portfolio$959.5M
Large Cap Core Stock Portfolio$766.0M
Equity Income Portfolio$755.4M
Small Cap Growth Stock Portfolio$732.8M
High Yield Bond Portfolio$698.2M
Mid Cap Value Portfolio$660.2M
Small Cap Value Portfolio$581.9M
Index 600 Stock Portfolio$525.9M
Inflation Managed Portfolio$419.8M
Short-Term Bond Portfolio$400.4M
Active/Passive Moderate Portfolio$294.4M
Large Company Value Portfolio$170.7M
Large Cap Blend Portfolio$156.9M

Largest reported holdings (across all series)

HoldingValue
United States Treasury$68.5M
United States Treasury$51.8M
United States Treasury$47.5M
United States Treasury$43.6M
UMBS, TBA$42.2M
UMBS, TBA$40.6M
United States Treasury$39.7M
United States Treasury$38.2M
United States Treasury$36.6M
United States Treasury$31.2M
United States Treasury$30.8M
United States Treasury$26.9M
United States Treasury$25.3M
United States Treasury$24.7M
Freddie Mac$23.9M

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