ACGR vs. TWCUX

Last updated Aug 4, 2026

ACGR (American Century Large Cap Growth ETF) and TWCUX (American Century Ultra Fund) are both Large Cap Growth Equities funds from American Century. ACGR is passively managed, while TWCUX is actively managed. Over the past 5 years, ACGR returned 10.88%/yr vs 8.73%/yr for TWCUX. Their correlation of 0.83 means they have usually moved in the same direction. ACGR charges 0.39%/yr vs 0.87%/yr for TWCUX.

Performance

ACGR vs. TWCUX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Large Cap Growth ETF (ACGR) and American Century Ultra Fund (TWCUX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACGR achieves a 4.58% return, which is significantly higher than TWCUX's 1.65% return.

ACGR

• 1D: 1.91%
• 1M: 1.45%
• 6M: 6.26%
• YTD: 4.58%
• 1Y: 13.92%
• 3Y*: 18.71%
• 5Y*: 10.88%
• 10Y*: —
• ALL TIME*: 13.99%

TWCUX

• 1D: 1.84%
• 1M: -1.94%
• 6M: 1.95%
• YTD: 1.65%
• 1Y: 11.78%
• 3Y*: 16.39%
• 5Y*: 8.73%
• 10Y*: 16.94%
• ALL TIME*: 12.62%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
ACGR American Century Large Cap Growth ETF	$37.93K	$20.75K	$25.60K
TWCUX American Century Ultra Fund	$0.00	$0.00	$0.00

ACGR vs. TWCUX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACGR American Century Large Cap Growth ETF	4.58%	14.50%	26.66%	43.24%	-30.13%	39.24%	11.27%
TWCUX American Century Ultra Fund	1.65%	12.66%	29.54%	43.36%	-32.38%	23.47%	42.24%

Correlation

The correlation between ACGR and TWCUX is 0.96 - they have historically moved very closely together. At this level, their price movements offset little of one another.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.96
Correlation (3Y) Balances recent behavior with more history.	0.97
Correlation (5Y) Shows whether the relationship held over a longer period.	0.98
Correlation (All Time) Calculated using the full available price history since Jan 21, 2020	0.83

The correlation between ACGR and TWCUX shifts across timeframes, from 0.83 (all time) to 0.98 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ACGR vs. TWCUX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

ACGR

ACGR Risk / Return Rank: 29
ACGR Sharpe Ratio Rank: 31
ACGR Sortino Ratio Rank: 30
ACGR Omega Ratio Rank: 29
ACGR Calmar Ratio Rank: 27
ACGR Martin Ratio Rank: 29

TWCUX

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

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

ACGR vs. TWCUX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Large Cap Growth ETF (ACGR) and American Century Ultra Fund (TWCUX). 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.

	ACGR	TWCUX	Difference
Sharpe ratio: Return per unit of total volatility	0.82	0.51	+0.30
Sortino ratio: Return per unit of downside risk	1.21	0.82	+0.39
Omega ratio: Gain probability vs. loss probability	1.15	1.10	+0.05
Calmar ratio: Return relative to maximum drawdown	0.88	0.60	+0.29
Martin ratio: Return relative to average drawdown	2.66	1.81	+0.85

ACGR vs. TWCUX - Sharpe Ratio Comparison

The current ACGR Sharpe Ratio is 0.82, which is higher than the TWCUX Sharpe Ratio of 0.51. The chart below compares the historical Sharpe Ratios of ACGR and TWCUX, 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

ACGR vs. TWCUX - Drawdown Comparison

The maximum ACGR drawdown since its inception was -34.54%, smaller than the maximum TWCUX drawdown of -62.11%. Use the drawdown chart below to compare losses from any high point for ACGR and TWCUX.

Drawdown Indicators

	ACGR	TWCUX	Difference
Max Drawdown Largest peak-to-trough decline	-34.54%	-62.11%	+27.57%
Max Drawdown (1Y) Largest decline over 1 year	-15.84%	-15.72%	-0.12%
Max Drawdown (3Y) Largest decline over 3 years	-24.58%	-24.86%	+0.28%
Max Drawdown (5Y) Largest decline over 5 years	-34.54%	-35.23%	+0.69%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.23%	—
Current Drawdown Current decline from peak	-4.25%	-7.68%	+3.43%
Average Drawdown Average peak-to-trough decline	-8.42%	-16.77%	+8.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.25%	5.18%	+0.07%

Volatility

ACGR vs. TWCUX - Volatility Comparison

American Century Large Cap Growth ETF (ACGR) and American Century Ultra Fund (TWCUX) have volatilities of 6.06% and 5.85%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACGR	TWCUX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.06%	5.85%	+0.21%
Volatility (6M) Calculated over the trailing 6-month period	13.72%	14.41%	-0.69%
Volatility (1Y) Calculated over the trailing 1-year period	17.19%	18.23%	-1.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.57%	22.82%	-1.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.41%	22.18%	-0.77%

ACGR vs. TWCUX - Expense Ratio Comparison

ACGR has a 0.39% expense ratio, which is lower than TWCUX's 0.87% expense ratio.

Dividends

ACGR vs. TWCUX - Dividend Comparison

ACGR's dividend yield for the trailing twelve months is around 0.12%, less than TWCUX's 11.39% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACGR American Century Large Cap Growth ETF	0.12%	0.11%	0.23%	0.37%	0.48%	0.58%	1.44%	0.00%	0.00%	0.00%	0.00%	0.00%
TWCUX American Century Ultra Fund	11.39%	11.57%	3.58%	6.09%	7.42%	6.78%	2.80%	4.27%	8.24%	5.85%	4.58%	5.21%

Frequently Asked Questions

Can I hold both ACGR and TWCUX in my portfolio?

With a correlation of 0.96, ACGR and TWCUX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, ACGR or TWCUX?

ACGR has higher volatility (6.06%) compared to TWCUX (5.85%). In terms of maximum drawdown, ACGR dropped -34.54% vs TWCUX's -62.11%.

Which has better risk-adjusted returns?

ACGR currently has the higher Sharpe Ratio (0.81 vs 0.51), 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.