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ACMGvsRFGETF Comparison

ETF 1
ACMG

American Century Mid Cap Growth Impact ETF

This fund is part of
US Mid Cap Growth
-1.17%
VS
ETF 2
RFG

Invesco S&P MidCap 400® Pure Growth ETF

This fund is part of
US Mid Cap Growth
-1.17%

American Century Mid Cap Growth Impact ETF (ACMG) and Invesco S&P MidCap 400® Pure Growth ETF (RFG) belong to the same industry segment: US Mid Cap Growth. In contrast, RFG's top sector exposures are Healthcare, Technology and Industrials. ACMG is more expensive with a Total Expense Ratio (TER) of 0.45%, versus 0.35% for RFG. ACMG is up 12.41% year-to-date (YTD) with +$37M in YTD flows. RFG performs better with 13.92% YTD performance, and +$4M in YTD flows. Run a side-by-side ETF comparison of ACMG and RFG 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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ACMG vs RFG performance and flow charts

Performance

-2.00.02.04.06.0%Sep 9Sep 16Sep 23Sep 30Oct 7

Cumulative Flows

-10 M0 M10 M20 M30 M40 MSep 9Sep 16Sep 23Sep 30Oct 7

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Historic performance and flows
Data as of 10/09/2026
1M3MYTD1Y3Y5Y
Perf.
ACMG
RFG
+5.61%+1.26%
+4.18%-1.27%
+12.41%+13.92%
+8.87%+18.31%
+64.42%+57.06%
+28.77%+38.48%
Flows
ACMG
RFG
+$36M-$7M
+$38M-$5M
+$37M+$4M
+$45M-$8M
+$66M-$39M
+$95M-$118M
Volatility and drawdown
3M1Y3Y5Y
Volatility
ACMG
RFG
+16.92%+18.12%
+19.37%+20.01%
+20.36%+20.64%
+24.10%+22.97%
Max drawdown
ACMG
RFG
-6.82%-9.62%
-14.34%-10.42%
-23.84%-26.58%
-40.04%-35.14%
Max drawdown duration
ACMG
RFG
34d56d
214d45d
154d380d
1060d836d
Trading data

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ACMG
RFG
Last sale
10/12/2026 at 7:59 PM
$59.72
Previous close
10/09/2026
$60.32
Consolidated volume
10/09/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of September 30, 2026
1-year trailing difference

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ACMG
is actively managed and doesn’t replicate an index

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ACMG
RFG
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 10/12/2026 at 7:59 PM
Live
Closed
ACMG
RFG
Last price
–
$59.72
1D performance
–
-1.00%
AuM$145.57 M$332.51 M
E/R0.45%0.35%
Characteristics
ACMG
RFG
Management strategyActivePassive
ProviderAmerican Century InvestmentsInvesco
Benchmark-S&P MidCap 400 Pure Growth Index
N° of holdings-100
Asset class-Equities
Trailing 12m distribution yield
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Inception dateJuly 15, 2020March 1, 2006
ESGYesNo
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Exposure

Countries

ACMG
Data will be available soon
RFG
USA
94.29%
Other
5.71%

Sectors

ACMG
Data will be available soon
RFG
Healthcare
22.98%
Technology
19.8%
Industrials
19.4%
Non-Energy Materi.
9.4%
Finance
7.8%
Other
20.62%
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Diversification

ACMG
Data will be available soon
RFG

Total weight of top 15 holdings out of 15

29.09%

Top 15 holdings

Data as of January 1, 1970
ACMG
Data will be available soon
RFG
Halozyme Therapeutics, Inc.
2.60%
Arrowhead Pharmaceuticals, Inc.
2.54%
TechnipFMC plc
2.24%
Carpenter Technology Corp.
2.05%
ATI, Inc.
1.90%
DigitalOcean Holdings, Inc.
1.90%
Sterling Infrastructure, Inc.
1.90%
Twilio, Inc.
1.86%
InterDigital, Inc.
1.84%
Medpace Holdings, Inc.
1.84%
Five Below, Inc.
1.80%
Valaris Ltd.
1.76%
Woodward, Inc.
1.70%
Hecla Mining Co.
1.64%
FirstCash Holdings, Inc.
1.54%
Frequently asked questions about ACMG and RFG

How have the ACMG and RFG ETFs performed in 2026?

As of October 9, 2026, ACMG is up 12.41% year-to-date (YTD), while RFG has returned 13.92%. That puts RFG better performer ahead so far this year.

Which ETF is attracting more investor money: ACMG or RFG?

Year-to-date, the ACMG ETF saw +$37M in flows, compared to +$4M for RFG.

Which ETF is more volatile: ACMG or RFG?

Over the past year, ACMG had a volatility of 19.37%, while RFG experienced 20.01%.

Which ETF is bigger: ACMG or RFG?

As of October 9, 2026, ACMG holds $145.57 M in assets under management (AUM), while RFG manages $332.51 M.

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