FDG vs. MID

Last updated Jun 24, 2026

FDG (American Century Focused Dynamic Growth ETF) and MID (American Century Mid Cap Growth Impact ETF) are both exchange-traded funds - FDG is a Global Equities fund actively managed by American Century, while MID is a Mid Cap Growth Equities fund actively managed by American Century. Both are actively managed. Over the past 5 years, FDG returned 9.81%/yr vs 3.85%/yr for MID. Their correlation of 0.86 suggests significant overlap in exposure. Both charge a 0.45% expense ratio.

Performance

FDG vs. MID - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Focused Dynamic Growth ETF (FDG) and American Century Mid Cap Growth Impact ETF (MID). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FDG achieves a 2.10% return, which is significantly lower than MID's 2.25% return.

FDG

• 1D: -1.60%
• 1M: -6.19%
• YTD: 2.10%
• 6M: 0.17%
• 1Y: 23.89%
• 3Y*: 26.18%
• 5Y*: 9.81%
• 10Y*: —

MID

• 1D: -1.39%
• 1M: 1.69%
• YTD: 2.25%
• 6M: 0.73%
• 1Y: 4.00%
• 3Y*: 13.39%
• 5Y*: 3.85%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

FDG vs. MID - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FDG American Century Focused Dynamic Growth ETF	2.10%	22.13%	45.89%	37.22%	-35.74%	8.52%	26.88%
MID American Century Mid Cap Growth Impact ETF	2.25%	8.22%	19.40%	22.20%	-27.44%	10.39%	30.35%

Correlation

The correlation between FDG and MID is 0.68, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.68
Correlation (3Y) Calculated over the trailing 3-year period	0.76
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (All Time) Calculated using the full available price history since Jul 15, 2020	0.86

The correlation between FDG and MID shifts across timeframes, from 0.68 (1 year) to 0.86 (all time), reflecting how their relationship changes across market environments.

FDG vs. MID - Sectors Allocation Comparison

Sectors	FDG	MID
Technology	37.7%	21.9%
Communication Services	21.5%	-
Consumer Cyclical	17.1%	12.2%
Healthcare	13.2%	18.7%
Industrials	5.2%	25.5%
Financial Services	4.7%	6.1%
Energy	0.6%	7.3%
Utilities	0.1%	4.4%
Basic Materials	-	2.3%
Consumer Defensive	-	1.6%
Real Estate	-	-

Return for Risk

FDG vs. MID — Risk / Return Rank

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

FDG

FDG Risk / Return Rank: 35
FDG Sharpe Ratio Rank: 37
FDG Sortino Ratio Rank: 34
FDG Omega Ratio Rank: 34
FDG Calmar Ratio Rank: 32
FDG Martin Ratio Rank: 35

MID

MID Risk / Return Rank: 12
MID Sharpe Ratio Rank: 12
MID Sortino Ratio Rank: 11
MID Omega Ratio Rank: 11
MID Calmar Ratio Rank: 12
MID Martin Ratio Rank: 13

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FDG vs. MID - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Focused Dynamic Growth ETF (FDG) and American Century Mid Cap Growth Impact ETF (MID). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	FDG	MID	Difference
Sharpe ratio: Return per unit of total volatility	1.26	0.23	+1.03
Sortino ratio: Return per unit of downside risk	1.74	0.44	+1.30
Omega ratio: Gain probability vs. loss probability	1.22	1.05	+0.17
Calmar ratio: Return relative to maximum drawdown	1.53	0.29	+1.24
Martin ratio: Return relative to average drawdown	5.17	0.85	+4.32

FDG vs. MID - Sharpe Ratio Comparison

The current FDG Sharpe Ratio is 1.26, which is higher than the MID Sharpe Ratio of 0.23. The chart below compares the historical Sharpe Ratios of FDG and MID, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

FDG vs. MID - Drawdown Comparison

The maximum FDG drawdown since its inception was -43.69%, which is greater than MID's maximum drawdown of -40.15%. Use the drawdown chart below to compare losses from any high point for FDG and MID.

Drawdown Indicators

	FDG	MID	Difference
Max Drawdown Largest peak-to-trough decline	-43.69%	-40.15%	-3.54%
Max Drawdown (1Y) Largest decline over 1 year	-15.71%	-13.89%	-1.82%
Max Drawdown (3Y) Largest decline over 3 years	-26.14%	-23.92%	-2.22%
Max Drawdown (5Y) Largest decline over 5 years	-43.69%	-40.15%	-3.54%
Current Drawdown Current decline from peak	-8.01%	-3.74%	-4.27%
Average Drawdown Average peak-to-trough decline	-13.35%	-13.34%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.63%	4.73%	-0.10%

Volatility

FDG vs. MID - Volatility Comparison

American Century Focused Dynamic Growth ETF (FDG) has a higher volatility of 8.15% compared to American Century Mid Cap Growth Impact ETF (MID) at 6.68%. This indicates that FDG's price experiences larger fluctuations and is considered to be riskier than MID based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDG	MID	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.15%	6.68%	+1.47%
Volatility (6M) Calculated over the trailing 6-month period	15.70%	13.88%	+1.82%
Volatility (1Y) Calculated over the trailing 1-year period	19.12%	17.45%	+1.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.87%	23.72%	+1.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.98%	23.93%	+1.05%

FDG vs. MID - Expense Ratio Comparison

Both FDG and MID have an expense ratio of 0.45%.

Dividends

FDG vs. MID - Dividend Comparison

FDG has not paid dividends to shareholders, while MID's dividend yield for the trailing twelve months is around 0.18%.

Position	TTM	2025	2024	2023	2022	2021	2020
FDG American Century Focused Dynamic Growth ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.01%
MID American Century Mid Cap Growth Impact ETF	0.18%	0.18%	0.17%	0.02%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FDG and MID in my portfolio?

FDG and MID have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FDG or MID?

FDG has higher volatility (8.15%) compared to MID (6.68%). In terms of maximum drawdown, FDG dropped -43.69% vs MID's -40.15%.

Which ETF is better, FDG or MID?

On 5-year performance, FDG leads with 9.81% vs 3.85% for MID. Both ETFs have the same 0.45% expense ratio. On volatility, MID has been the lower-risk option at 6.68%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FDG or MID?

Over the 5-year period, FDG has performed better with a 9.81% return vs 3.85%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FDG or MID?

FDG and MID have the same expense ratio: 0.45% per year.

Which ETF pays a higher dividend yield, FDG or MID?

MID has the higher dividend yield at 0.18%, compared with 0.00% for FDG.

What is the main difference between FDG and MID?

FDG is categorized as Global Equities, while MID is Mid Cap Growth Equities.

Which has better risk-adjusted returns?

FDG currently has the higher Sharpe Ratio (1.26 vs 0.23), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.