ACGR vs. TWCUX

Last updated Jun 3, 2026

ACGR (American Century Large Cap Growth ETF) and TWCUX (American Century Ultra Fund) are both Large Cap Growth Equities funds from American Century. Over the past 5 years, ACGR returned 15.34%/yr vs 13.04%/yr for TWCUX. Their correlation of 0.83 suggests significant overlap in exposure. ACGR charges 0.39%/yr vs 0.93%/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 8.73% return, which is significantly lower than TWCUX's 9.68% return.

ACGR

• 1D: -0.45%
• 1M: 7.07%
• YTD: 8.73%
• 6M: 8.10%
• 1Y: 26.66%
• 3Y*: 21.94%
• 5Y*: 15.34%
• 10Y*: —

TWCUX

• 1D: -0.39%
• 1M: 6.24%
• YTD: 9.68%
• 6M: 8.02%
• 1Y: 25.64%
• 3Y*: 21.95%
• 5Y*: 13.04%
• 10Y*: 18.29%

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

ACGR vs. TWCUX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
ACGR American Century Large Cap Growth ETF	8.73%	14.50%	26.66%	43.24%	-30.13%	39.24%	11.27%
TWCUX American Century Ultra Fund	9.68%	12.66%	29.54%	43.36%	-32.38%	23.47%	42.19%

Correlation

The correlation between ACGR and TWCUX is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Jan 22, 2020	0.83

The correlation between ACGR and TWCUX shifts across timeframes, from 0.83 (all time) to 0.97 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

ACGR vs. TWCUX — Risk / Return Rank

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

ACGR

ACGR Risk / Return Rank: 43
ACGR Sharpe Ratio Rank: 50
ACGR Sortino Ratio Rank: 48
ACGR Omega Ratio Rank: 46
ACGR Calmar Ratio Rank: 34
ACGR Martin Ratio Rank: 37

TWCUX

TWCUX Risk / Return Rank: 27
TWCUX Sharpe Ratio Rank: 32
TWCUX Sortino Ratio Rank: 29
TWCUX Omega Ratio Rank: 29
TWCUX Calmar Ratio Rank: 21
TWCUX Martin Ratio Rank: 23

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.

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.

	ACGR	TWCUX	Difference
Sharpe ratio Return per unit of total volatility	1.74	1.62	+0.11
Sortino ratio Return per unit of downside risk	2.37	2.23	+0.14
Omega ratio Gain probability vs. loss probability	1.30	1.28	+0.02
Calmar ratio Return relative to maximum drawdown	1.71	1.68	+0.03
Martin ratio Return relative to average drawdown	5.83	5.89	-0.07
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACGR vs. TWCUX - Sharpe Ratio Comparison

The current ACGR Sharpe Ratio is 1.74, which is comparable to the TWCUX Sharpe Ratio of 1.62. 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.

Sharpe Ratios by Period

	ACGR	TWCUX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.74	1.62	+0.11
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.72	0.58	+0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.83	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.71	0.53	+0.18

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	-0.45%	-0.39%	-0.06%
Average Drawdown Average peak-to-trough decline	-8.50%	-16.81%	+8.31%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.66%	4.48%	+0.18%

Volatility

ACGR vs. TWCUX - Volatility Comparison

The current volatility for American Century Large Cap Growth ETF (ACGR) is 3.35%, while American Century Ultra Fund (TWCUX) has a volatility of 3.78%. This indicates that ACGR experiences smaller price fluctuations and is considered to be less risky than TWCUX based on this measure. 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	3.35%	3.78%	-0.43%
Volatility (6M) Calculated over the trailing 6-month period	11.88%	12.33%	-0.45%
Volatility (1Y) Calculated over the trailing 1-year period	15.43%	16.31%	-0.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.50%	22.56%	-1.06%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.42%	22.08%	-0.66%

ACGR vs. TWCUX - Expense Ratio Comparison

ACGR has a 0.39% expense ratio, which is lower than TWCUX's 0.93% expense ratio.

Dividends

ACGR vs. TWCUX - Dividend Comparison

ACGR's dividend yield for the trailing twelve months is around 0.09%, less than TWCUX's 10.55% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACGR American Century Large Cap Growth ETF	0.09%	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	10.55%	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?

TWCUX has higher volatility (3.78%) compared to ACGR (3.35%). 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 (1.74 vs 1.62), 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.