American Century Small Cap Growth Insights ETF (ACSG) Performance
ACSG total return
Distributions reinvested · as of Oct 23, 2026- YTD
- +10.1% since Dec 31, 2025
- 1 year
- +9.8% total return
- Since first price
- +11.4% since 2025
ACSG trailing returns vs SPY, QQQ, AGG
| Period | ACSG total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | −3.2% | −3.2% | −1.0% | −5.0% | +0.9% |
| 3 months | −6.5% | −6.5% | +3.2% | +1.9% | −0.4% |
| 6 months | +1.4% | +1.4% | +7.8% | +8.4% | −1.5% |
| YTD | +10.1% | +10.1% | +12.3% | +15.1% | −1.0% |
| 1 year | +9.8% | +9.8% | +14.4% | +15.9% | −1.1% |
| Since inceptionOct 16, 2025 | +11.4% | +11.4% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: ACSG vs SPY
From Oct 16, 2025: ACSG grew to $11,136, SPY to $11,628.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
ACSG returns by calendar year
2026 is year to date.
ACSG annual returns table
| Year | ACSG | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | +10.1% | −13.3% | +12.3% | +15.1% | −1.0% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
ACSG largest drawdowns
Now 11.6% below the high| Peak | Decline | Bottom | Recovered | Fall | Underwater |
|---|---|---|---|---|---|
| Jan 22, 2026 | −13.3% | Mar 30, 2026 | Apr 17, 2026 | 2 months | 3 months |
| Aug 14, 2026 | −13.1% | Oct 16, 2026 | not yet | 2 months | 2 months so far |
Declines from a closing high (distributions reinvested) of 10% or more. Underwater = time from the peak until the old high was regained.
ACSG rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 1 | +9.9% | +9.9% | +9.9% | 100% |
Every holding period starting at a month-end since 2025. Returns for 3 years and longer are annualized.
ACSG performance overview
American Century Small Cap Growth Insights ETF (ACSG) returned +9.8% over the past year, with distributions reinvested. Since its first recorded price on Oct 16, 2025 it has returned +11.4%. Over the same year S&P 500 (SPY) returned +14.4%.
The deepest decline was −13.3%, from Jan 22, 2026 to Mar 30, 2026, and it took 18 days to get back to the old high.
Related: ACSG chart, ACSG holdings, ACSG valuation. See the ACSG overview for the latest quote and fund facts.
ACSG performance FAQ
What is the ACSG return over the past year?
ACSG returned +9.8% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it rose 9.8%.
How much would $10,000 invested in ACSG be worth?
$10,000 invested in ACSG at its first recorded close on October 16, 2025 would be worth about $11,136 on October 23, 2026 with distributions reinvested.
What is the biggest drawdown of ACSG?
The largest peak-to-trough decline was −13.3% between January 22, 2026 and March 30, 2026. It recovered to the old high on April 17, 2026, 18 days after the bottom.