High Yield Bond Portfolio
Data updated: 2026-05-27
C000000081 — High Yield Bond Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Short Corporate Bond · $698.24M AUM · 0.46% expense ratio · 6.6% 1-yr return. From SEC regulatory filings.
C000000081 Fund Overview
High Yield Bond Portfolio is a US mutual fund managed by Northwestern Mutual Series Fund INC, categorised as Short Corporate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Northwestern Mutual Series Fund INC
- Category: Short Corporate Bond
- Assets under management: $698.24M
- 1-year return: 6.6%
- SEC CIK: 0000742212
- SEC series ID: S000000046
- Share class ID: C000000081
C000000081 Holdings
Top 10 holdings of High Yield Bond Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Ardonagh Group Finance | 1.02% |
| Medline Borrower LP | 0.85% |
| Mcafee Corp. | 0.81% |
| Panther Escrow Issuer | 0.73% |
| Madison Iaq LLC | 0.72% |
| Tallgrass Nrg Prtnr/fin | 0.71% |
| Beach Acquisition Bidco | 0.70% |
| Ukg, Inc. | 0.70% |
| Usi Inc/ny | 0.68% |
| Hub International Ltd. | 0.68% |
C000000081 Portfolio Allocation
Asset-class allocation of High Yield Bond Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 96.3% |
| Equity | 0.2% |
C000000081 Performance
Total returns for C000000081 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.7% |
| 1 year | 6.6% |
| 3 years (annualised) | 7.8% |
| 5 years (annualised) | 3.7% |
C000000081 Risk Information
Risk metrics for C000000081, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.5%
C000000081 Costs and Fees
C000000081 costs about $46 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.46%
- Gross expense ratio: 0.46%
- Portfolio turnover: 35%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000000081 Cashflows
Over the 12 months to 2026-03, High Yield Bond Portfolio had net inflows of $5.27M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$5.71M |
| 2026-02 | −$1.39M |
| 2026-01 | −$2.23M |
| 2025-12 | −$2.36M |
| 2025-11 | −$1.21M |
| 2025-10 | −$2.09M |
C000000081 Debt Constituents
Largest debt holdings of High Yield Bond Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Ardonagh Group Finance | 1.02% |
| Medline Borrower LP | 0.85% |
| Mcafee Corp. | 0.81% |
| Panther Escrow Issuer | 0.73% |
| Madison Iaq LLC | 0.72% |
| Tallgrass Nrg Prtnr/fin | 0.71% |
| Beach Acquisition Bidco | 0.70% |
| Ukg, Inc. | 0.70% |
| Usi Inc/ny | 0.68% |
| Hub International Ltd. | 0.68% |
C000000081 Prospectus and SEC Filings
Official High Yield Bond Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Short Corporate Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.