# Active/Passive Conservative Portfolio

Active/Passive Conservative Portfolio is a registered fund series of NORTHWESTERN MUTUAL SERIES FUND INC (series S000091982). Net assets $31.9M as of 2026-03-31.

## Profile

- Series ID: S000091982
- Registrant: NORTHWESTERN MUTUAL SERIES FUND INC
- LEI: 2549005F3XTNPU5M6F29
- Net assets: $31.9M
- Total assets: $32.0M
- As of: 2026-03-31
- Type: Fund of funds

## Advisers

- [Mason Street Advisors, LLC (Advisor)](https://search.stillhousedata.com/firm/114085)

## Top holdings (26 reported)

_Showing 15 of 26 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [iShares Core U.S. Aggregate Bond ETF](https://search.stillhousedata.com/security/464287226) | — | $10.4M | 3274.12% |
| [Northwestern Mutual Series Fund, Inc. - Select Bond Portfolio](https://search.stillhousedata.com/security/668140759) | — | $7.5M | 2337.73% |
| [Northwestern Mutual Series Fund, Inc. - Multi-Sector Bond Portfolio](https://search.stillhousedata.com/security/668140882) | — | $3.1M | 974.15% |
| [State Street SPDR Portfolio Long Term Treasury ETF](https://search.stillhousedata.com/security/78464A664) | — | $1.5M | 471.26% |
| [Northwestern Mutual Series Fund, Inc. - Short-Term Bond Portfolio.](https://search.stillhousedata.com/security/668140601) | — | $749K | 234.68% |
| [State Street SPDR Portfolio S&P 400 Mid Cap ETF](https://search.stillhousedata.com/security/78464A847) | — | $731K | 228.89% |
| [Northwestern Mutual Series Fund, Inc. - International Equity Portfolio](https://search.stillhousedata.com/security/668140692) | — | $722K | 226.33% |
| [iShares Core S&P 500 ETF](https://search.stillhousedata.com/security/464287200) | — | $641K | 200.98% |
| [Northwestern Mutual Series Fund, Inc. - Emerging Markets Equity Portfolio](https://search.stillhousedata.com/security/668140502) | — | $606K | 189.80% |
| [abrdn Bloomberg All Commodity Strategy K-1 Free ETF](https://search.stillhousedata.com/security/003261104) | — | $557K | 174.61% |
| [iShares Core MSCI EAFE ETF](https://search.stillhousedata.com/security/46432F842) | — | $474K | 148.38% |
| [Northwestern Mutual Series Fund, Inc. - Domestic Equity Portfolio](https://search.stillhousedata.com/security/668140791) | — | $425K | 133.11% |
| [Northwestern Mutual Series Fund, Inc. - Large Cap Blend Portfolio](https://search.stillhousedata.com/security/668140205) | — | $411K | 128.89% |
| [Northwestern Mutual Series Fund, Inc. - Focused Appreciation Portfolio](https://search.stillhousedata.com/security/668140775) | — | $411K | 128.89% |
| [State Street SPDR Dow Jones REIT ETF](https://search.stillhousedata.com/security/78464A607) | — | $392K | 122.84% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $31.9M |
| 2025-12-31 | $29.8M |
| 2025-09-30 | $27.2M |

## More

- [Registrant: NORTHWESTERN MUTUAL SERIES FUND INC](https://search.stillhousedata.com/registrant/742212)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000091982.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.