SA MFS Large Cap Growth Portfolio
Data updated: 2026-09-28
C000021981 — SA MFS Large Cap Growth Portfolio. United States Large Cap Blend / Core Equity · $688.43M AUM. Holdings, fees, performance and SEC filings.
C000021981 Fund Overview
SA MFS Large Cap Growth Portfolio is a US mutual fund managed by Sunamerica Series Trust, categorised as United States Large 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: Sunamerica Series Trust
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $688.43M
- 1-year return: 11.7%
- SEC CIK: 0000892538
- SEC series ID: S000008085
- Share class ID: C000021981
C000021981 Investment Objective and Strategy
SA MFS Large Cap Growth Portfolio describes its objective and strategy as follows, from its latest prospectus filed with the SEC by Sunamerica Series Trust.
Investment objective
The Portfolios investment goal is capital appreciation.
Principal investment strategy
The Portfolio attempts to achieve its investment goal by investing, under normal circumstances, at least 80% of its net assets in securities of large capitalization companies. For purposes of such policy, the Portfolio will consider large capitalization companies to be those with market capitalizations similar to companies in the Russell 1000 Index. The Portfolio may invest in foreign securities up to 20% of net assets, including securities of issuers located in emerging markets. The subadviser normally invests the Portfolios assets across different industries and sectors, but the subadviser may invest a significant percentage of the Portfolios assets in a single industry or sector. The subadviser focuses on investing the Portfolios assets in the stocks of companies it believes to have above average earnings growth potential compared to other companies (growth companies).
Growth companies tend to have stock prices that are high relative to their earnings, dividends, book value, or other financial measures. The subadviser uses an active bottom-up approach to buying and selling investments for the Portfolio. Investments are selected primarily based on blending fundamental and quantitative research. The subadviser uses fundamental analysis of individual issuers and their potential in light of their financial condition and market, economic, political, and regulatory conditions to determine a fundamental rating for an issuer. Factors considered may include analysis of an issuers earnings, cash flows, competitive position, and management ability. The subadviser may also consider environmental, social, and governance (ESG) factors in its fundamental investment analysis where MFS believes such factors could materially impact the economic value of an issuer.
ESG factors considered may include, but are not limited to, climate change, resource depletion, an issuers governance structure and practices, data protection and privacy issues, and diversity and labor practices. The subadviser uses quantitative analysis, including quantitative models that systematically evaluate an issuers valuation, price and earnings momentum, earnings quality, and other factors to determine a quantitative rating for an issuer. The subadviser combines the fundamental rating with the quantitative rating to create a blended rating for an issuer. When a fundamental rating is not available, the subadviser treats the issuer as having a neutral fundamental rating. (The subadvisers quantitative research generates ratings on a greater number of issuers than the subadvisers fundamental research.) The subadviser constructs the portfolio using a portfolio optimization process that considers the blended rating, as well as issuer, industry, and sector weightings, market capitalization, volatility, and other factors.
The portfolio managers have the discretion to adjust the inputs and parameters used in the optimization process and the Portfolios holdings based on factors such as the desired portfolio characteristics and the portfolio managers qualitative assessment of the optimization results. The goal is to construct an actively managed portfolio with a target predicted tracking error of approximately 2% compared to the Russell 1000 Growth Index (the Index). Tracking error generally measures how the differences between the Portfolios returns and the Indexs returns have varied over a period of time. A lower tracking error means that there is generally less variation between the Portfolios returns compared to an index that represents the Portfolios investment universe. Third party quantitative risk models are used in the portfolio construction process and to measure the predicted tracking error of the Portfolio.
For purposes of the Portfolios 80% policy, net assets include the amount of any borrowings for investment purposes. The Portfolio is non-diversified, which means that it may invest its assets in a smaller number of issuers than a diversified portfolio.
C000021981 Holdings
Top 10 holdings of SA MFS Large Cap Growth Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corp | 14.57% |
| Apple Inc | 8.97% |
| Microsoft Corp | 6.65% |
| Alphabet Inc | 6.32% |
| Broadcom Inc | 4.25% |
| Alphabet Inc | 3.70% |
| Micron Technology Inc | 3.53% |
| Advanced Micro Devices Inc | 3.25% |
| Meta Platforms Inc | 2.83% |
| Amazon.com Inc | 2.39% |
C000021981 Portfolio Allocation
Asset-class allocation of SA MFS Large Cap Growth Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 100.0% |
| Fixed Income | 0.1% |
C000021981 Performance
Total returns for C000021981 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 4.6% |
| 1 year | 11.7% |
| 3 years (annualised) | 20.9% |
| 5 years (annualised) | 12.0% |
C000021981 Risk Information
Risk metrics for C000021981, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 16.4%
C000021981 Costs and Fees
C000021981 costs about $68 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.68%
- Gross expense ratio: 0.68%
- Portfolio turnover: 56%
- Brokerage commissions: 0.78 bps of average net assets (SEC N-CEN)
C000021981 Cashflows
Over the 12 months to 2026-07, SA MFS Large Cap Growth Portfolio had net outflows of $105.66M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-07 | −$14.14M |
| 2026-06 | −$21.61M |
| 2026-05 | −$13.02M |
| 2026-04 | −$416.98K |
| 2026-03 | −$7.43M |
| 2026-02 | −$44.48M |
C000021981 Debt Constituents
Largest debt holdings of SA MFS Large Cap Growth Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Fed Home Ln Discount Nt | 0.11% |
C000021981 Prospectus and SEC Filings
Official SA MFS Large Cap Growth Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-27
- Prospectus (485BPOS) — filed 2025-04-28
- Prospectus (485BPOS) — filed 2024-04-26
- Portfolio holdings (N-PORT) — filed 2026-09-28
- Portfolio holdings (N-PORT) — filed 2026-06-29
- Portfolio holdings (N-PORT) — filed 2026-03-27
- Annual census (N-CEN) — filed 2026-04-16
- Annual census (N-CEN) — filed 2025-04-11
Related Funds
Other United States Large 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.