ACIHX vs. VHCAX

Last updated Aug 4, 2026

ACIHX (American Century Investments Growth Fund G Class) and VHCAX (Vanguard Capital Opportunity Fund Admiral Shares) are both Large Cap Growth Equities funds. Both are actively managed. Over the past 3 years, ACIHX returned 18.17%/yr vs 22.57%/yr for VHCAX. Their correlation of 0.84 means they have usually moved in the same direction. ACIHX charges 0.00%/yr vs 0.32%/yr for VHCAX.

Performance

ACIHX vs. VHCAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Investments Growth Fund G Class (ACIHX) and Vanguard Capital Opportunity Fund Admiral Shares (VHCAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACIHX achieves a 2.97% return, which is significantly lower than VHCAX's 20.21% return.

ACIHX

• 1D: 1.58%
• 1M: -1.21%
• 6M: 4.32%
• YTD: 2.97%
• 1Y: 13.53%
• 3Y*: 18.17%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 18.84%

VHCAX

• 1D: -0.01%
• 1M: -3.88%
• 6M: 13.29%
• YTD: 20.21%
• 1Y: 43.39%
• 3Y*: 22.57%
• 5Y*: 12.77%
• 10Y*: 16.16%
• ALL TIME*: 12.49%

*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)
ACIHX American Century Investments Growth Fund G Class	$0.00	$0.00	$0.00
VHCAX Vanguard Capital Opportunity Fund Admiral Shares	$0.00	$0.00	$0.00

ACIHX vs. VHCAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
ACIHX American Century Investments Growth Fund G Class	2.97%	16.26%	27.35%	44.64%	-6.24%
VHCAX Vanguard Capital Opportunity Fund Admiral Shares	20.21%	25.83%	14.07%	25.63%	-0.92%

Correlation

The correlation between ACIHX and VHCAX is 0.76, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.76
Correlation (3Y) Balances recent behavior with more history.	0.80
Correlation (All Time) Calculated using the full available price history since May 16, 2022	0.84

The correlation between ACIHX and VHCAX has been stable across timeframes, ranging from 0.76 to 0.84 - a consistent structural relationship.

Return for Risk

ACIHX vs. VHCAX — Risk / Return Rank

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

ACIHX

ACIHX Risk / Return Rank: 14
ACIHX Sharpe Ratio Rank: 15
ACIHX Sortino Ratio Rank: 15
ACIHX Omega Ratio Rank: 15
ACIHX Calmar Ratio Rank: 13
ACIHX Martin Ratio Rank: 14

VHCAX

VHCAX Risk / Return Rank: 84
VHCAX Sharpe Ratio Rank: 85
VHCAX Sortino Ratio Rank: 81
VHCAX Omega Ratio Rank: 79
VHCAX Calmar Ratio Rank: 89
VHCAX Martin Ratio Rank: 89

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.

ACIHX vs. VHCAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Investments Growth Fund G Class (ACIHX) and Vanguard Capital Opportunity Fund Admiral Shares (VHCAX). 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.

	ACIHX	VHCAX	Difference
Sharpe ratio: Return per unit of total volatility	0.65	2.08	-1.44
Sortino ratio: Return per unit of downside risk	1.00	2.87	-1.88
Omega ratio: Gain probability vs. loss probability	1.12	1.37	-0.25
Calmar ratio: Return relative to maximum drawdown	0.69	3.37	-2.68
Martin ratio: Return relative to average drawdown	2.09	12.21	-10.11

ACIHX vs. VHCAX - Sharpe Ratio Comparison

The current ACIHX Sharpe Ratio is 0.65, which is lower than the VHCAX Sharpe Ratio of 2.08. The chart below compares the historical Sharpe Ratios of ACIHX and VHCAX, 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

ACIHX vs. VHCAX - Drawdown Comparison

The maximum ACIHX drawdown since its inception was -24.00%, smaller than the maximum VHCAX drawdown of -54.27%. Use the drawdown chart below to compare losses from any high point for ACIHX and VHCAX.

Drawdown Indicators

	ACIHX	VHCAX	Difference
Max Drawdown Largest peak-to-trough decline	-24.00%	-54.27%	+30.27%
Max Drawdown (1Y) Largest decline over 1 year	-16.40%	-12.42%	-3.98%
Max Drawdown (3Y) Largest decline over 3 years	-24.00%	-23.92%	-0.08%
Max Drawdown (5Y) Largest decline over 5 years	—	-27.55%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-33.78%	—
Current Drawdown Current decline from peak	-5.97%	-7.93%	+1.96%
Average Drawdown Average peak-to-trough decline	-4.91%	-8.37%	+3.46%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.39%	3.42%	+1.97%

Volatility

ACIHX vs. VHCAX - Volatility Comparison

The current volatility for American Century Investments Growth Fund G Class (ACIHX) is 5.80%, while Vanguard Capital Opportunity Fund Admiral Shares (VHCAX) has a volatility of 6.41%. This indicates that ACIHX experiences smaller price fluctuations and is considered to be less risky than VHCAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACIHX	VHCAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.80%	6.41%	-0.61%
Volatility (6M) Calculated over the trailing 6-month period	13.90%	17.10%	-3.20%
Volatility (1Y) Calculated over the trailing 1-year period	17.50%	20.12%	-2.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.08%	20.34%	+0.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.08%	20.49%	+0.59%

ACIHX vs. VHCAX - Expense Ratio Comparison

ACIHX has a 0.00% expense ratio, which is lower than VHCAX's 0.32% expense ratio.

Dividends

ACIHX vs. VHCAX - Dividend Comparison

ACIHX's dividend yield for the trailing twelve months is around 15.49%, more than VHCAX's 8.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACIHX American Century Investments Growth Fund G Class	15.49%	15.95%	5.65%	4.61%	2.86%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VHCAX Vanguard Capital Opportunity Fund Admiral Shares	8.08%	9.71%	8.24%	2.40%	9.35%	10.55%	9.19%	6.48%	12.23%	3.87%	5.74%	5.39%

Frequently Asked Questions

Can I hold both ACIHX and VHCAX in my portfolio?

ACIHX and VHCAX have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACIHX or VHCAX?

VHCAX has higher volatility (6.41%) compared to ACIHX (5.80%). In terms of maximum drawdown, ACIHX dropped -24.00% vs VHCAX's -54.27%.

Which has better risk-adjusted returns?

VHCAX currently has the higher Sharpe Ratio (2.08 vs 0.65), 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.