NICSX vs. ACIHX

Last updated Apr 1, 2026

Compare and contrast key facts about Nicholas Fund (NICSX) and American Century Growth Fund G Class (ACIHX).

NICSX is managed by Nicholas. It was launched on Jul 14, 1969. ACIHX is an actively managed fund by American Century. It was launched on Mar 1, 2022.

Performance

NICSX vs. ACIHX - Performance Comparison

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

NICSX vs. ACIHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
NICSX Nicholas Fund	-10.51%	4.45%	11.80%	34.17%	0.30%
ACIHX American Century Growth Fund G Class	-13.30%	16.26%	27.35%	44.64%	-6.24%

Returns By Period

In the year-to-date period, NICSX achieves a -10.51% return, which is significantly higher than ACIHX's -13.30% return.

NICSX

• 1D: 0.30%
• 1M: -7.85%
• YTD: -10.51%
• 6M: -10.20%
• 1Y: -2.60%
• 3Y*: 8.62%
• 5Y*: 6.92%
• 10Y*: 10.26%

ACIHX

• 1D: -0.39%
• 1M: -8.72%
• YTD: -13.30%
• 6M: -12.27%
• 1Y: 13.26%
• 3Y*: 17.20%
• 5Y*: —
• 10Y*: —

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

NICSX vs. ACIHX - Expense Ratio Comparison

NICSX has a 0.71% expense ratio, which is higher than ACIHX's 0.01% expense ratio.

NICSX

Nicholas Fund

ACIHX

American Century Growth Fund G Class

Return for Risk

NICSX vs. ACIHX — Risk / Return Rank

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

NICSX

NICSX Risk / Return Rank: 3
NICSX Sharpe Ratio Rank: 4
NICSX Sortino Ratio Rank: 4
NICSX Omega Ratio Rank: 4
NICSX Calmar Ratio Rank: 3
NICSX Martin Ratio Rank: 2

ACIHX

ACIHX Risk / Return Rank: 23
ACIHX Sharpe Ratio Rank: 23
ACIHX Sortino Ratio Rank: 27
ACIHX Omega Ratio Rank: 25
ACIHX Calmar Ratio Rank: 21
ACIHX Martin Ratio Rank: 21

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.

NICSX vs. ACIHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nicholas Fund (NICSX) and American Century Growth Fund G Class (ACIHX). 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.

	NICSX	ACIHX	Difference
Sharpe ratio Return per unit of total volatility	-0.13	0.59	-0.72
Sortino ratio Return per unit of downside risk	-0.07	1.02	-1.08
Omega ratio Gain probability vs. loss probability	0.99	1.14	-0.15
Calmar ratio Return relative to maximum drawdown	-0.30	0.63	-0.93
Martin ratio Return relative to average drawdown	-1.08	2.21	-3.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

NICSX vs. ACIHX - Sharpe Ratio Comparison

The current NICSX Sharpe Ratio is -0.13, which is lower than the ACIHX Sharpe Ratio of 0.59. The chart below compares the historical Sharpe Ratios of NICSX and ACIHX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	NICSX	ACIHX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.13	0.59	-0.72
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.40	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.57	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.63	0.73	-0.10

Correlation

The correlation between NICSX and ACIHX is 0.90, 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.

Dividends

NICSX vs. ACIHX - Dividend Comparison

NICSX's dividend yield for the trailing twelve months is around 10.30%, less than ACIHX's 18.39% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NICSX Nicholas Fund	10.30%	9.22%	3.97%	6.81%	2.26%	11.84%	6.76%	8.13%	5.38%	15.55%	3.63%	6.19%
ACIHX American Century Growth Fund G Class	18.39%	15.95%	5.65%	4.61%	2.86%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

NICSX vs. ACIHX - Drawdown Comparison

The maximum NICSX drawdown since its inception was -50.20%, which is greater than ACIHX's maximum drawdown of -24.00%. Use the drawdown chart below to compare losses from any high point for NICSX and ACIHX.

Drawdown Indicators

	NICSX	ACIHX	Difference
Max Drawdown Largest peak-to-trough decline	-50.20%	-24.00%	-26.20%
Max Drawdown (1Y) Largest decline over 1 year	-13.20%	-16.40%	+3.20%
Max Drawdown (5Y) Largest decline over 5 years	-25.32%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-33.44%	—	—
Current Drawdown Current decline from peak	-12.94%	-16.40%	+3.46%
Average Drawdown Average peak-to-trough decline	-7.66%	-4.95%	-2.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.71%	4.68%	-0.97%

Volatility

NICSX vs. ACIHX - Volatility Comparison

The current volatility for Nicholas Fund (NICSX) is 4.10%, while American Century Growth Fund G Class (ACIHX) has a volatility of 5.43%. This indicates that NICSX experiences smaller price fluctuations and is considered to be less risky than ACIHX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NICSX	ACIHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.10%	5.43%	-1.33%
Volatility (6M) Calculated over the trailing 6-month period	8.86%	12.03%	-3.17%
Volatility (1Y) Calculated over the trailing 1-year period	16.96%	22.42%	-5.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.33%	21.21%	-3.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.93%	21.21%	-3.28%