ACSGvsVIOGETF Comparison
ETF 1
ACSG
American Century Small Cap Growth Insights ETF
This fund is part of
US Small Cap Growth
-0.14%
VS
American Century Small Cap Growth Insights ETF (ACSG) and Vanguard S&P Small-Cap 600 Growth ETF (VIOG) belong to the same industry segment: US Small Cap Growth. ACSG's top 3 sector exposures are Healthcare, Technology and Industrials. In contrast, VIOG's top sector exposures are Finance, Industrials and Healthcare. ACSG is more expensive with a Total Expense Ratio (TER) of 0.49%, versus 0.1% for VIOG. ACSG is up 13.96% year-to-date (YTD) with +$43M in YTD flows. VIOG performs better with 16.31% YTD performance, and +$80M in YTD flows. Run a side-by-side ETF comparison of ACSG and VIOG below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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ACSG vs VIOG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ACSG VIOG | -8.51%-8.21% | -2.66%-3.18% | +13.96%+16.31% | n/a+17.23% | n/a+49.77% | n/a+29.95% |
| Flows | ACSG VIOG | +$21M-$6M | +$32M+$57M | +$43M+$80M | -+$41M | -+$195M | -+$291M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ACSG VIOG | +18.45%+14.42% | n/a+17.38% | n/a+19.95% | n/a+21.44% |
| Max drawdown | ACSG VIOG | -8.52%-8.65% | n/a-9.06% | n/a-27.38% | n/a-29.24% |
| Max drawdown duration | ACSG VIOG | 31d43d | n/a41d | n/a414d | n/a980d |
Trading data
ACSG | VIOG | |
Last sale 9/17/2026 at 1:30 PM | $140.87 | |
| Previous close 09/16/2026 | $140.72 | |
| Consolidated volume 09/16/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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ACSG
is actively managed and doesn’t replicate an indexACSG | VIOG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/17/2026 at 1:30 PM
Live
Closed
ACSG | VIOG | |
|---|---|---|
| Last price | – | $140.87 |
| 1D performance | – | +0.11% |
| AuM | $50.59 M | $1.04 B |
| E/R | 0.49% | 0.1% |
Characteristics
ACSG | VIOG | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | American Century Investments | Vanguard |
| Benchmark | - | S&P SmallCap 600 Growth Index |
| N° of holdings | 297 | 348 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 14, 2025 | September 7, 2010 |
| ESG | No | No |
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Exposure
Countries
ACSG
USA
93.41%
Other
6.59%
VIOG
USA
96.81%
Other
3.19%
Sectors
ACSG
Healthcare
27.11%
Technology
16.77%
Industrials
15.92%
Finance
14.55%
Other
25.66%
VIOG
Finance
23.11%
Industrials
16.86%
Healthcare
14.93%
Technology
12.77%
Other
32.34%
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Diversification
ACSG
Total weight of top 15 holdings out of 15
12.13%
VIOG
Total weight of top 15 holdings out of 15
14.17%
Top 15 holdings
Data as of July 31, 2026
ACSG
Krystal Biotech, Inc.
1.06%
Plexus Corp.
0.96%
Hexcel Corp.
0.92%
AAR Corp.
0.85%
10X Genomics, Inc.
0.85%
CECO Environmental Corp.
0.84%
ESCO Technologies, Inc.
0.81%
Argan, Inc.
0.81%
Crinetics Pharmaceuticals, Inc.
0.77%
Life Time Group Holdings, Inc.
0.73%
Littelfuse, Inc.
0.72%
Sensient Technologies Corp.
0.71%
Enova International, Inc.
0.70%
Novanta, Inc.
0.70%
Miami International Holdings, Inc.
0.70%
VIOG
Corcept Therapeutics, Inc.
1.24%
ViaSat, Inc.
1.18%
Brinker International, Inc.
1.04%
Ryman Hospitality Properties, Inc.
0.95%
FormFactor, Inc.
0.93%
Protagonist Therapeutics, Inc.
0.93%
ESCO Technologies, Inc.
0.92%
Alkermes Plc
0.92%
StoneX Group, Inc.
0.91%
Argan, Inc.
0.90%
Etsy, Inc.
0.88%
Federal Signal Corp.
0.86%
Zurn Elkay Water Solutions Corp.
0.85%
Armstrong World Industries, Inc.
0.84%
JBT Marel Corp.
0.81%
Frequently asked questions about ACSG and VIOG
How have the ACSG and VIOG ETFs performed in 2026?
As of September 16, 2026, ACSG is up 13.96% year-to-date (YTD), while VIOG has returned 16.31%. That puts VIOG better performer ahead so far this year.
Which ETF is attracting more investor money: ACSG or VIOG?
Year-to-date, the ACSG ETF saw +$43M in flows, compared to +$80M for VIOG.
Which ETF is bigger: ACSG or VIOG?
As of September 16, 2026, ACSG holds $50.59 M in assets under management (AUM), while VIOG manages $1.04 B.
What sectors do the ACSG and VIOG ETFs invest in?
ACSG leans toward sectors like Healthcare, Technology and Industrials. Meanwhile, VIOG focuses on Finance, Industrials and Healthcare.
What are the top holdings of the ACSG ETF and VIOG ETF?
ACSG top holdings include Krystal Biotech, Inc., Plexus Corp. and Hexcel Corp.. VIOG holds in its top three: Corcept Therapeutics, Inc., ViaSat, Inc. and Brinker International, Inc..
Which ETF is more diversified: ACSG or VIOG?
ACSG holds 300 securities with 12.13% of its assets in the top 15. VIOG has 348 securities and a top 15 weight of 14.17%.
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