Index 600 Stock Portfolio is a registered fund series of NORTHWESTERN MUTUAL SERIES FUND INC (series S000018231). Net assets $525.9M as of 2026-03-31. Index fund.
Showing 15 of 200 holdings by value.
| Holding | Ticker | Value | % of fund |
|---|---|---|---|
| Eastman Chemical Co | — | $3.0M | 56.54% |
| Element Solutions Inc | — | $2.7M | 50.45% |
| Primoris Services Corp | — | $2.6M | 50.20% |
| Viavi Solutions Inc | — | $2.6M | 50.09% |
| Argan Inc | — | $2.6M | 49.15% |
| FormFactor Inc | — | $2.6M | 48.91% |
| LKQ Corp | — | $2.6M | 48.80% |
| Jackson Financial Inc | — | $2.6M | 48.58% |
| ESCO Technologies Inc | — | $2.5M | 47.34% |
| Match Group Inc | — | $2.5M | 47.05% |
| Celanese Corp | — | $2.5M | 46.85% |
| Semtech Corp | — | $2.4M | 46.29% |
| Armstrong World Industries Inc | — | $2.4M | 46.24% |
| Sanmina Corp | — | $2.4M | 46.05% |
| SM Energy Co | — | $2.4M | 45.83% |
| Report date | Net assets |
|---|---|
| 2026-03-31 | $525.9M |
| 2025-12-31 | $514.5M |
| 2025-09-30 | $509.2M |
| 2025-06-30 | $471.8M |
| 2025-03-31 | $438.7M |
| 2024-12-31 | $476.3M |
| 2024-09-30 | $483.2M |
| 2024-06-30 | $438.7M |