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High Yield Bond Portfolio
NORTHWESTERN MUTUAL SERIES FUND INC

Allocation breakdown

As of March 31, 2026 · N-PORT

By asset class

By country

By sector

By industry (SIC code)

As of March 31, 2026 · N-PORT

How we map holdings to the sectors above: each holding's issuer carries a U.S. SIC industry code in its EDGAR filer record, and each SIC code rolls up to a sector. Expand a sector to see its industries, and click a SIC code to list this fund's positions in that industry. Bonds and foreign or private issuers with no SEC filer record fall into Unclassified.

Hotels & Motels 2.18%
Retail-Eating Places 1.17%
Services-Business Services, NEC 1.03%
Motor Vehicle Parts & Accessories 0.75%
Retail-Grocery Stores 0.75%
Services-Racing, Including Track Operation 0.44%
Services-Miscellaneous Amusement & Recreation 0.41%
Services-Miscellaneous Equipment Rental & Leasing 0.39%
Apparel & Other Finishd Prods of Fabrics & Similar Matl 0.37%
Industrial Instruments For Measurement, Display, and Control 0.35%
Retail-Miscellaneous Retail 0.35%
Services-Equipment Rental & Leasing, NEC 0.33%
Retail-Auto Dealers & Gasoline Stations 0.30%
Retail-Family Clothing Stores 0.21%
Retail-Catalog & Mail-Order Houses 0.19%
Retail-Retail Stores, NEC 0.17%
Services-Amusement & Recreation Services 0.13%
Sporting & Athletic Goods, NEC 0.10%
Services-Prepackaged Software 0.95%
Miscellaneous Electrical Machinery, Equipment & Supplies 0.77%
Services-Computer Integrated Systems Design 0.69%
Services-Computer Processing & Data Preparation 0.69%
Laboratory Analytical Instruments 0.59%
Computer Storage Devices 0.50%
Optical Instruments & Lenses 0.35%
Calculating & Accounting Machines (No Electronic Computers) 0.19%
Semiconductors & Related Devices 0.17%
Printed Circuit Boards 0.08%
Natural Gas Transmission 2.73%
Electric Services 1.51%
Hazardous Waste Management 0.13%
Services-Commercial Physical & Biological Research 0.61%
Aircraft Parts & Auxiliary Equipment, NEC 0.53%
Water Transportation 0.46%
Wholesale-Electrical Apparatus & Equipment, Wiring Supplies 0.45%
General Industrial Machinery & Equipment 0.29%
Construction - Special Trade Contractors 0.24%
Wholesale-Groceries, General Line 0.24%
Wholesale-Chemicals & Allied Products 0.22%
Metal Cans 0.17%
General Bldg Contractors - Residential Bldgs 0.05%
Air Transportation, Scheduled 0.02%
Plastics Products, NEC 0.63%
Metal Mining 0.48%
Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) 0.48%
Gold and Silver Ores 0.29%
Paperboard Mills 0.24%
Miscellaneous Chemical Products 0.23%
Paperboard Containers & Boxes 0.20%
Perfumes, Cosmetics & Other Toilet Preparations 0.13%
Paints, Varnishes, Lacquers, Enamels & Allied Prods 0.09%
Adhesives & Sealants 0.08%
Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) 0.07%
Crude Petroleum & Natural Gas 1.78%
Drilling Oil & Gas Wells 0.42%
Oil & Gas Field Services, NEC 0.31%
Mortgage Bankers & Loan Correspondents 0.71%
Insurance Agents, Brokers & Service 0.56%
Finance Services 0.47%
Hospital & Medical Service Plans 0.15%
Oil Royalty Traders 0.10%
Security Brokers, Dealers & Flotation Companies 0.07%
Services-General Medical & Surgical Hospitals, NEC 1.19%
Pharmaceutical Preparations 0.77%
Surgical & Medical Instruments & Apparatus 0.08%
Cable & Other Pay Television Services 1.12%
Radio Broadcasting Stations 0.64%
Television Broadcasting Stations 0.28%
Real Estate Investment Trusts 0.78%
Food and Kindred Products 0.46%
Grain Mill Products 0.15%
— Unclassified 64.77%

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