TSTFX — Transamerica Stock Index
Data updated: 2026-08-26
TSTFX — Transamerica Stock Index. United States Large Cap Blend / Core Equity · $156.87M AUM. Holdings, fees, performance and SEC filings.
TSTFX Fund Overview
TSTFX — Transamerica Stock Index is a US mutual fund managed by Transamerica Funds, 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: Transamerica Funds
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $156.87M
- 1-year return: 21.8%
- Ticker: TSTFX
- SEC CIK: 0000787623
- SEC series ID: S000054675
- Share class ID: C000171785
TSTFX Holdings
Top 1 holdings of Transamerica Stock Index by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Master Investment Portfolio | 100.06% |
TSTFX Portfolio Allocation
Asset-class allocation of Transamerica Stock Index by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 100.1% |
TSTFX Performance
Total returns for TSTFX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 10.0% |
| 1 year | 21.8% |
| 3 years (annualised) | 20.2% |
| 5 years (annualised) | 13.0% |
TSTFX Risk Information
Risk metrics for TSTFX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 13.1%
TSTFX Costs and Fees
TSTFX costs about $30 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.30%
- Gross expense ratio: 0.40%
- Portfolio turnover: 14%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
TSTFX Cashflows
Over the 12 months to 2026-06, Transamerica Stock Index had net outflows of $127.67M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$497.72K |
| 2026-05 | −$42.81M |
| 2026-04 | −$399.83K |
| 2026-03 | −$1.86M |
| 2026-02 | $903.53K |
| 2026-01 | −$6.47M |
TSTFX Debt Constituents
No individual debt constituents are reported in Transamerica Stock Index's latest SEC N-PORT filing.
TSTFX Prospectus and SEC Filings
Official Transamerica Stock Index filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-30
- Prospectus (485BPOS) — filed 2025-04-30
- Prospectus (485BPOS) — filed 2024-04-26
- Portfolio holdings (N-PORT) — filed 2026-08-26
- Portfolio holdings (N-PORT) — filed 2026-05-26
- Portfolio holdings (N-PORT) — filed 2026-02-25
- Annual census (N-CEN) — filed 2026-03-13
- Annual census (N-CEN) — filed 2025-03-13
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.