ACSG — American Century Small Cap Growth Insights ETF
Data updated: 2026-07-29
ACSG — American Century Small Cap Growth Insights ETF. 0.49% expense ratio · since 2025. Holdings, fees, performance and SEC filings.
ACSG Fund Overview
ACSG — American Century Small Cap Growth Insights ETF is a US ETF managed by American Century ETF Trust, categorised as United States Small Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: American Century ETF Trust
- Category: United States Small Cap Growth Equity
- Assets under management: $17.12M
- Ticker: ACSG
- SEC CIK: 0001710607
- SEC series ID: S000093803
- Share class ID: C000262251
ACSG Investment Objective and Strategy
American Century Small Cap Growth Insights ETF describes its objective and strategy as follows, from its latest prospectus filed with the SEC by American Century ETF Trust.
Investment objective
The fund seeks long-term capital growth.
Principal investment strategy
Under normal market conditions, the fund will invest at least 80% of its net assets in small-cap companies. The portfolio managers consider small cap companies to include those with a market capitalization that does not exceed that of the largest company in the Russell 2000 Growth Index. Though market capitalization will change from time to time, as of September 30, 2025, the market capitalization of the largest company in the Russell 2000 Growth Index was approximately $25.2 billion. The portfolio managers employ a bottom-up stock selection process utilizing proprietary fundamental research and systematic, risk-aware portfolio construction to invest primarily in small-cap U.S. companies exhibiting accelerating growth rates and strong or improving business fundamentals. Portfolio managers construct the portfolio using a risk-aware framework with the goal of stock selection being the primary driver of excess return.
The portfolio managers look for stocks of smaller-sized companies they believe will increase in value over time, using an investment strategy developed by the funds investment advisor. In implementing this strategy, the portfolio managers make their investment decisions based primarily on their analysis of individual companies, rather than on broad economic forecasts. Management of the fund is based on the belief that, over the long term, stock price movements follow growth in earnings and revenues. The portfolio managers principal analytical technique involves the identification of companies with earnings and revenues that are not only growing, but growing at an accelerating pace. This includes companies whose growth rates, although still negative, are less negative than prior periods, and companies whose growth rates are expected to accelerate.
In addition to accelerating growth, the fund also may consider companies whose stocks demonstrate price strength relative to their peers. This means that the portfolio managers favor companies whose securities are the strongest performers compared to the overall market. These techniques help the portfolio managers buy or hold the stocks of companies they believe have favorable growth prospects and sell the stocks of companies whose characteristics no longer meet their criteria. Guided by this fundamental analysis, the advisor applies systematic risk controls and portfolio construction techniques to generate trade recommendations, which the portfolio managers use in an effort to improve efficiency, capacity, and liquidity. The portfolio managers generally sell a stock when they believe it has become less attractive relative to other opportunities, its risk characteristics outweigh its return opportunity or specific events alter its prospects.
The fund may engage in active and frequent trading of portfolio securities to achieve its principal investment strategies. This may cause higher transaction costs and may affect performance. It may also result in the realization and distribution of capital gains. The fund is an actively managed exchange-traded fund (ETF) that does not seek to replicate the performance of a specified index. When deciding whether to buy or sell a security, and how and when to implement a trade, portfolio managers may consider the expected implementation costs and tax consequences of the trade in an attempt to gain trading efficiencies, avoid unnecessary risk, minimize tax impact, and/or enhance fund performance.
ACSG Holdings
Top 10 holdings of American Century Small Cap Growth Insights ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Bloom Energy Corp | 3.68% |
| Credo Technology Group Holding Ltd | 2.12% |
| Sterling Infrastructure Inc | 1.98% |
| Fabrinet | 1.33% |
| Plexus Corp | 1.02% |
| SiTime Corp | 1.01% |
| Modine Manufacturing Co | 0.93% |
| Guardant Health Inc | 0.92% |
| Argan Inc | 0.91% |
| CECO Environmental Corp | 0.90% |
ACSG Portfolio Allocation
Asset-class allocation of American Century Small Cap Growth Insights ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.7% |
| Cash & Equivalents | 0.3% |
ACSG Performance
Total returns for ACSG (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 15.69% |
ACSG Costs and Fees
ACSG costs about $49 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.49%
- Gross expense ratio: 0.49%
ACSG Cashflows
Over the 12 months to 2026-05, American Century Small Cap Growth Insights ETF had net inflows of $14.90M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-05 | $1.13M |
| 2026-04 | $1.06M |
| 2026-03 | $4.02M |
| 2026-02 | $1.57M |
| 2026-01 | $536.92K |
| 2025-12 | $0 |
ACSG Debt Constituents
No individual debt constituents are reported in American Century Small Cap Growth Insights ETF's latest SEC N-PORT filing.
ACSG Prospectus and SEC Filings
Official American Century Small Cap Growth Insights ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Small Cap Growth 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.