Index 600 Stock Portfolio
Data updated: 2026-05-27
C000050279 — Index 600 Stock Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Small Cap Blend / Core Equity · $525.94M AUM · 0.26% expense ratio · 20.2% 1-yr return. From SEC regulatory filings.
C000050279 Fund Overview
Index 600 Stock Portfolio is a US mutual fund managed by Northwestern Mutual Series Fund INC, categorised as United States Small Cap Blend / Core Equity. 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: United States Small Cap Blend / Core Equity
- Assets under management: $525.94M
- 1-year return: 20.2%
- SEC CIK: 0000742212
- SEC series ID: S000018231
- Share class ID: C000050279
C000050279 Holdings
Top 10 holdings of Index 600 Stock Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Eastman Chemical Co | 0.57% |
| Element Solutions Inc | 0.50% |
| Primoris Services Corp | 0.50% |
| Viavi Solutions Inc | 0.50% |
| Argan Inc | 0.49% |
| FormFactor Inc | 0.49% |
| LKQ Corp | 0.49% |
| Jackson Financial Inc | 0.49% |
| ESCO Technologies Inc | 0.47% |
| Match Group Inc | 0.47% |
C000050279 Portfolio Allocation
Asset-class allocation of Index 600 Stock Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.3% |
| Cash & Equivalents | 0.1% |
C000050279 Performance
Total returns for C000050279 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 3.4% |
| 1 year | 20.2% |
| 3 years (annualised) | 10.2% |
| 5 years (annualised) | 4.2% |
C000050279 Risk Information
Risk metrics for C000050279, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 12.4%
C000050279 Costs and Fees
C000050279 costs about $26 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.26%
- Gross expense ratio: 0.26%
- Portfolio turnover: 24%
- Brokerage commissions: 0.21 bps of average net assets (SEC N-CEN)
C000050279 Cashflows
Over the 12 months to 2026-03, Index 600 Stock Portfolio had net inflows of $26.82M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$2.41M |
| 2026-02 | −$4.00M |
| 2026-01 | −$86.85K |
| 2025-12 | −$847.48K |
| 2025-11 | −$395.23K |
| 2025-10 | −$1.70M |
C000050279 Debt Constituents
No individual debt constituents are reported in Index 600 Stock Portfolio's latest SEC N-PORT filing.
C000050279 Prospectus and SEC Filings
Official Index 600 Stock Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Small Cap Blend / Core Equity 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.