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MID vs. RFG
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between MID and RFG is 0.86, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.


-0.50.00.51.00.9

Performance

MID vs. RFG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Mid Cap Growth Impact ETF (MID) and Invesco S&P MidCap 400® Pure Growth ETF (RFG). The values are adjusted to include any dividend payments, if applicable.

-10.00%-5.00%0.00%5.00%10.00%AugustSeptemberOctoberNovemberDecember2025
11.04%
1.37%
MID
RFG

Key characteristics

Sharpe Ratio

MID:

1.79

RFG:

1.32

Sortino Ratio

MID:

2.46

RFG:

1.88

Omega Ratio

MID:

1.30

RFG:

1.23

Calmar Ratio

MID:

1.43

RFG:

1.70

Martin Ratio

MID:

10.21

RFG:

5.05

Ulcer Index

MID:

2.91%

RFG:

4.95%

Daily Std Dev

MID:

16.63%

RFG:

18.91%

Max Drawdown

MID:

-40.15%

RFG:

-51.93%

Current Drawdown

MID:

-2.52%

RFG:

-5.12%

Returns By Period

In the year-to-date period, MID achieves a 5.26% return, which is significantly higher than RFG's 4.56% return.


MID

YTD

5.26%

1M

4.78%

6M

12.69%

1Y

28.45%

5Y*

N/A

10Y*

N/A

RFG

YTD

4.56%

1M

4.13%

6M

2.68%

1Y

23.82%

5Y*

10.76%

10Y*

8.32%

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


MID vs. RFG - Expense Ratio Comparison

MID has a 0.45% expense ratio, which is higher than RFG's 0.35% expense ratio.


MID
American Century Mid Cap Growth Impact ETF
Expense ratio chart for MID: current value at 0.45% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.45%
Expense ratio chart for RFG: current value at 0.35% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.35%

Risk-Adjusted Performance

MID vs. RFG — Risk-Adjusted Performance Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

MID
The Risk-Adjusted Performance Rank of MID is 6666
Overall Rank
The Sharpe Ratio Rank of MID is 7171
Sharpe Ratio Rank
The Sortino Ratio Rank of MID is 7070
Sortino Ratio Rank
The Omega Ratio Rank of MID is 6666
Omega Ratio Rank
The Calmar Ratio Rank of MID is 5252
Calmar Ratio Rank
The Martin Ratio Rank of MID is 7474
Martin Ratio Rank

RFG
The Risk-Adjusted Performance Rank of RFG is 5151
Overall Rank
The Sharpe Ratio Rank of RFG is 5252
Sharpe Ratio Rank
The Sortino Ratio Rank of RFG is 5151
Sortino Ratio Rank
The Omega Ratio Rank of RFG is 4949
Omega Ratio Rank
The Calmar Ratio Rank of RFG is 5757
Calmar Ratio Rank
The Martin Ratio Rank of RFG is 4747
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

MID vs. RFG - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Mid Cap Growth Impact ETF (MID) and Invesco S&P MidCap 400® Pure Growth ETF (RFG). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.


Sharpe ratio
The chart of Sharpe ratio for MID, currently valued at 1.79, compared to the broader market0.002.004.001.791.32
The chart of Sortino ratio for MID, currently valued at 2.46, compared to the broader market0.005.0010.002.461.88
The chart of Omega ratio for MID, currently valued at 1.30, compared to the broader market0.501.001.502.002.503.001.301.23
The chart of Calmar ratio for MID, currently valued at 1.43, compared to the broader market0.005.0010.0015.0020.001.431.70
The chart of Martin ratio for MID, currently valued at 10.21, compared to the broader market0.0020.0040.0060.0080.00100.0010.215.05
MID
RFG

The current MID Sharpe Ratio is 1.79, which is higher than the RFG Sharpe Ratio of 1.32. The chart below compares the historical Sharpe Ratios of MID and RFG, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio1.001.502.002.503.00AugustSeptemberOctoberNovemberDecember2025
1.79
1.32
MID
RFG

Dividends

MID vs. RFG - Dividend Comparison

MID's dividend yield for the trailing twelve months is around 0.16%, less than RFG's 0.36% yield.


TTM20242023202220212020201920182017201620152014
MID
American Century Mid Cap Growth Impact ETF
0.16%0.17%0.02%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
RFG
Invesco S&P MidCap 400® Pure Growth ETF
0.36%0.38%0.99%0.78%0.26%0.27%0.64%0.76%0.66%0.35%0.61%0.60%

Drawdowns

MID vs. RFG - Drawdown Comparison

The maximum MID drawdown since its inception was -40.15%, smaller than the maximum RFG drawdown of -51.93%. Use the drawdown chart below to compare losses from any high point for MID and RFG. For additional features, visit the drawdowns tool.


-14.00%-12.00%-10.00%-8.00%-6.00%-4.00%-2.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-2.52%
-5.12%
MID
RFG

Volatility

MID vs. RFG - Volatility Comparison

American Century Mid Cap Growth Impact ETF (MID) has a higher volatility of 5.81% compared to Invesco S&P MidCap 400® Pure Growth ETF (RFG) at 5.47%. This indicates that MID's price experiences larger fluctuations and is considered to be riskier than RFG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


3.00%4.00%5.00%6.00%7.00%8.00%9.00%AugustSeptemberOctoberNovemberDecember2025
5.81%
5.47%
MID
RFG
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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