SA MFS Massachusetts Investors Trust Portfolio
Data updated: 2026-09-28
C000021977 — SA MFS Massachusetts Investors Trust Portfolio. United States Large Cap Blend / Core Equity. Holdings, fees, performance and SEC filings.
C000021977 Fund Overview
SA MFS Massachusetts Investors Trust 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: $582.21M
- 1-year return: 15.0%
- SEC CIK: 0000892538
- SEC series ID: S000008083
- Share class ID: C000021977
C000021977 Investment Objective and Strategy
SA MFS Massachusetts Investors Trust 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 goals are reasonable growth of income and long term growth and appreciation.
Principal investment strategy
The Portfolio attempts to achieve its goal by investing, under normal market conditions, at least 65% of its assets in equity securities. Equity securities include common stocks, preferred stocks, securities convertible into stocks, and depositary receipts for such securities. The Portfolio may invest up to 25% of its net assets in foreign securities. In selecting investments for the Portfolio, the subadviser is not constrained by any particular investment style. The subadviser may invest the Portfolios assets in the stocks of companies it believes to have above average earnings growth potential compared to other companies (growth companies), in the stocks of companies it believes are undervalued compared to their perceived worth (value companies), or in a combination of growth and value companies.
While the Portfolio may invest its assets in securities of companies of any size, the Portfolio primarily invests in securities of companies with large capitalizations. 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 uses an active bottom-up investment approach to buying and selling investments for the Portfolio. Investments are selected primarily based on fundamental analysis of individual issuers and their potential in light of their financial condition, and market, economic, political, and regulatory conditions. 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. Quantitative screening tools that systematically evaluate an issuers valuation, price and earnings momentum, earnings quality, and other factors may also be considered.
C000021977 Holdings
Top 10 holdings of SA MFS Massachusetts Investors Trust Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corp | 7.81% |
| Apple Inc | 6.49% |
| Alphabet Inc | 6.08% |
| Microsoft Corp | 5.78% |
| Amazon.com Inc | 5.25% |
| Broadcom Inc | 3.49% |
| JPMorgan Chase & Co | 2.84% |
| Meta Platforms Inc | 2.30% |
| Visa Inc | 1.91% |
| Mastercard Inc | 1.72% |
C000021977 Portfolio Allocation
Asset-class allocation of SA MFS Massachusetts Investors Trust Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.5% |
| Fixed Income | 0.5% |
C000021977 Performance
Total returns for C000021977 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 9.2% |
| 1 year | 15.0% |
| 3 years (annualised) | 15.3% |
| 5 years (annualised) | 9.1% |
C000021977 Risk Information
Risk metrics for C000021977, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.9%
C000021977 Costs and Fees
C000021977 costs about $95 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.95%
- Gross expense ratio: 0.99%
- Portfolio turnover: 28%
- Brokerage commissions: 0.89 bps of average net assets (SEC N-CEN)
C000021977 Cashflows
Over the 12 months to 2026-07, SA MFS Massachusetts Investors Trust Portfolio had net inflows of $70.76M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-07 | −$10.23M |
| 2026-06 | −$6.90M |
| 2026-05 | −$8.57M |
| 2026-04 | −$2.18M |
| 2026-03 | −$8.43M |
| 2026-02 | −$20.61M |
C000021977 Debt Constituents
Largest debt holdings of SA MFS Massachusetts Investors Trust Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Fed Home Ln Discount Nt | 0.51% |
C000021977 Prospectus and SEC Filings
Official SA MFS Massachusetts Investors Trust 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.