Select Bond Portfolio
Data updated: 2026-05-27
C000000082 — Select Bond Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Total / Aggregate Bond · $2.84B AUM · 0.31% expense ratio · 4.5% 1-yr return. From SEC regulatory filings.
C000000082 Fund Overview
Select Bond Portfolio is a US mutual fund managed by Northwestern Mutual Series Fund INC, categorised as Long Total / Aggregate 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: Long Total / Aggregate Bond
- Assets under management: $2.84B
- 1-year return: 4.5%
- SEC CIK: 0000742212
- SEC series ID: S000000047
- Share class ID: C000000082
C000000082 Holdings
Top 10 holdings of Select Bond Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury | 2.41% |
| United States Treasury | 1.83% |
| United States Treasury | 1.67% |
| United States Treasury | 1.54% |
| Umbs, Tba | 1.49% |
| Umbs, Tba | 1.43% |
| United States Treasury | 1.40% |
| United States Treasury | 1.35% |
| United States Treasury | 1.29% |
| United States Treasury | 1.10% |
C000000082 Portfolio Allocation
Asset-class allocation of Select Bond Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 54.7% |
| Securitized | 47.1% |
C000000082 Performance
Total returns for C000000082 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.1% |
| 1 year | 4.5% |
| 3 years (annualised) | 4.0% |
| 5 years (annualised) | 0.5% |
C000000082 Risk Information
Risk metrics for C000000082, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.5%
C000000082 Costs and Fees
C000000082 costs about $31 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.31%
- Gross expense ratio: 0.32%
- Portfolio turnover: 234%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000000082 Cashflows
Over the 12 months to 2026-03, Select Bond Portfolio had net inflows of $6.03M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$17.95M |
| 2026-02 | $1.29M |
| 2026-01 | −$1.00M |
| 2025-12 | −$9.19M |
| 2025-11 | −$11.90M |
| 2025-10 | −$15.58M |
C000000082 Debt Constituents
Largest debt holdings of Select Bond Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 2.41% |
| United States Treasury | 1.83% |
| United States Treasury | 1.67% |
| United States Treasury | 1.54% |
| United States Treasury | 1.40% |
| United States Treasury | 1.35% |
| United States Treasury | 1.29% |
| United States Treasury | 1.10% |
| United States Treasury | 1.09% |
| United States Treasury | 0.95% |
C000000082 Prospectus and SEC Filings
Official Select Bond Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Total / Aggregate 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.