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RSBAvsACSGETF Comparison
American Century Small Cap Growth Insights ETF
Return Stacked Bonds & Merger Arbitrage ETF (RSBA) belongs to the Alternatives segment. American Century Small Cap Growth Insights ETF (ACSG) is part of the US Small Cap Growth segment. RSBA's top 3 sector exposures are Health Care, Information Technology and Industrials. In contrast, ACSG's top sector exposures are Information Technology, Industrials and Health Care. RSBA is more expensive with a Total Expense Ratio (TER) of 0.96%, versus 0.49% for ACSG. RSBA is down -1.07% year-to-date (YTD) with +$26M in YTD flows. ACSG performs better with -0.17% YTD performance, and +$3M in YTD flows. Run a side-by-side ETF comparison of RSBA and ACSG below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
RSBA vs ACSG performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | RSBA ACSG | -2.10%-4.72% | -0.88%-3.76% | -1.07%-0.17% | +4.18%n/a | n/an/a | n/an/a |
| Flows | RSBA ACSG | +$567K+$2M | +$29M+$3M | +$26M+$3M | +$39M- | -- | -- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | RSBA ACSG | +4.05%+19.54% | +4.90%n/a | n/an/a | n/an/a |
| Max drawdown | RSBA ACSG | -2.20%-8.17% | -2.93%n/a | n/an/a | n/an/a |
| Max drawdown duration | RSBA ACSG | 12d48d | 78dn/a | n/an/a | n/an/a |
RSBA | ACSG | |
Last sale 3/13/2026 at 1:30 PM | $20.66 | |
| Previous close 03/12/2026 | $20.69 | |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
RSBA | ACSG | |
|---|---|---|
| Last price | $20.66 | – |
| 1D performance | -0.13% | – |
| AuM | $56.84 M | $9.68 M |
| E/R | 0.96% | 0.49% |
RSBA | ACSG | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | Return Stacked ETFs | American Century Investments |
| Benchmark | - | - |
| N° of holdings | 8 | 207 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 17, 2024 | October 14, 2025 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 8 holdings out of 8
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the RSBA and ACSG ETFs performed in 2026?
As of March 13, 2026, RSBA is down -1.07% year-to-date (YTD), while ACSG has lost -0.17%. That puts ACSG better performer ahead so far this year.
Which ETF is attracting more investor money: RSBA or ACSG?
Year-to-date, the RSBA ETF saw +$26M in flows, compared to +$3M for ACSG.
Which ETF is bigger: RSBA or ACSG?
As of March 13, 2026, RSBA holds $56.84 M in assets under management (AUM), while ACSG manages $9.68 M.
What sectors do the RSBA and ACSG ETFs invest in?
RSBA leans toward sectors like Health Care, Information Technology and Industrials. Meanwhile, ACSG focuses on Information Technology, Industrials and Health Care.
What are the top holdings of the RSBA ETF and ACSG ETF?
RSBA top holdings include CHART INDUSTRIES, BRIGHTHOUSE FINANCIAL and PENUMBRA. ACSG holds in its top three: BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and FABRINET.
Which ETF is more diversified: RSBA or ACSG?
RSBA has 8 securities. ACSG has 207 securities and a top 15 weight of 14.67%.
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