ETF Evaluator:
American Century Small Cp Gr Insgts ETF ()
Follow This ETF
(as of Aug 26)
Best Performing in Small Growth Over the Last Year
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ETF Details
American Century Small Cp Gr Insgts ETF Overview
American Century Small Cp Gr Insgts ETF (ACSG) is an actively managed U.S. Equity Small Growth exchange-traded fund (ETF). American Century Investments launched the ETF in 2025.
The investment seeks long-term capital growth.
Under normal market conditions, the fund will invest at least 80% of its net assets in small-cap companies. 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.
About American Century Small Cp Gr Insgts ETF (ACSG)
There are 3 members of the management team with an average tenure of 0.79 years: Jackie Wagner (2025), Jeff Hoernemann (2025) and Stephen Quance (2025). Management tenure is more important for actively managed ETFs than passive index ETFs.
American Century Small Cp Gr Insgts ETF has 302 securities in its portfolio. The top 10 holdings constitute 8.6% of the ETF’s assets. The ETF meets the SEC requirement of being classified as a diversified fund. The ETF is not considered to have an ESG focus with its investment selection and management.
American Century Small Cp Gr Insgts ETF is part of the Equity global asset class and is within the U.S. Equity ETF group. American Century Small Cp Gr Insgts ETF has 4.2% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 95.3% There is 4.2% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). American Century Small Cp Gr Insgts ETF has 0.5% of the portfolio in cash.
Assets Under Management
The fund has $26 million in total assets, which is below the $2 billion average for the Small Growth category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
ACSG Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The American Century Small Cp Gr Insgts ETF expense ratio is average compared to funds in the Small Growth category. American Century Small Cp Gr Insgts ETF has an expense ratio of 0.49%, which is 13% higher than its category average, making the fund expense ratio grade a C. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. American Century Small Cp Gr Insgts ETF has a portfolio turnover rate of 0%, which indicates that it holds its assets around /years. By way of comparison, the average portfolio turnover is 74% for the Small Growth category.
Recently, in the month of July 2026, American Century Small Cp Gr Insgts ETF returned -5.1%, which earned it a grade of C, as the Small Growth category had an average return of -5.5%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all ETFs in that category.
American Century Small Cp Gr Insgts ETF has a trailing yield of 0.00%, which is below the 0.44% category average.
The fund normally distributes its income quarterly and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
American Century Small Cp Gr Insgts ETF Grades
Year to date, the ETF has returned 16.7%, 0.0 percentage points better than the category, which translates into a grade of B.
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ACSG Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| ACSG Return (NAV) | -5.1% | 6.5% | na | na | na | na |
| ACSG Return (Price) | -5.0% | 6.7% | na | na | na | na |
| NAV +/- Price Return | -0.087% | -0.146% | na | na | na | na |
| Small Growth Avg | -5.5% | 4.5% | 27.0% | 12.8% | 4.3% | 11.0% |
| ACSG Grade (NAV) | C | C | na | na | na | na |
| +/- Category (NAV) | 0.4% | 2.0% | na | na | na | na |
| ACSG Tax-Cost Ratio | na | na | na | na | na | na |
ACSG Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| ACSG Return (NAV) | 16.7% | na | na | na | na | na | na | na | na | na | na |
| ACSG Return (Price) | 15.7% | na | na | na | na | na | na | na | na | na | na |
| NAV +/- Price Ret | -0.057% | na | na | na | na | na | na | na | na | na | na |
| Small Growth Avg | 16.7% | 11.2% | 11.1% | 17.8% | -26.9% | 8.9% | 43.2% | 28.5% | -6.7% | 21.2% | 12.7% |
| ACSG Grade (NAV) | B | na | na | na | na | na | na | na | na | na | na |
| +/- Category | 0.0% | na | na | na | na | na | na | na | na | na | na |
| Risk Measures | |
| Beta: | na |
| R-Squared: | na |
| Standard Deviation: | na |
| Category Risk Index: | na |
| Category Risk Rating: | |
| Total Risk Index: | na |
| Total Risk Rating: | |
| Portfolio Characteristics | |
| Yield: | -- |
| Total Assets: | $ 26 Mil |
| Share Class Assets: | $ 26 Mil |
| Turnover: | na |
| Expense Ratio: | 0.49% |
| Index Fund: | No |
| Index Tracked: | N/A |
| Index Weighting: | 100% |
| Leveraged: | No |
| Socially Responsible Fund: | No |
| Capital Gains Distribution Frequency: | Annually |
| Income Distribution Frequency: | Quarterly |
Management Team
| Number of Managers: 3 | |||
| Longest Tenure: 0.8 years | |||
| Average Tenure: 0.8 years | |||
| Managers (Year): Wagner Jackie (2025), Hoernemann Jeff (2025), Quance Stephen (2025) | |||
Portfolio Composition (as of 7/31/26)
| # of Holdings: | 302 |
| % in Top 10 Holdings: | 8.6% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 4.2% |
Portfolio Allocation |
|
| Domestic Stock: | 95.3% |
| Foreign Stock: | 4.2% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 0.5% |
Purchase Information
| Legal Structure: | Open Ended Investment Company |
| Fund Family: | American Century Investments |
| Phone Number: | 800-345-2021 |
| Website: | americancenturyetfs.com |
| Inception Date: | October 14, 2025 |
Expenses and Fees
| Expense Ratio (%): | 0.49% (Rating: Avg) |
| Category Average Expense Ratio (%): | 0.43% |