RPXIX vs. ACIHX

Last updated Apr 2, 2026

Compare and contrast key facts about RiverPark Large Growth Fund (RPXIX) and American Century Growth Fund G Class (ACIHX).

RPXIX is managed by RiverPark Funds. It was launched on Sep 30, 2010. ACIHX is an actively managed fund by American Century. It was launched on Mar 1, 2022.

Performance

RPXIX vs. ACIHX - Performance Comparison

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

RPXIX vs. ACIHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
RPXIX RiverPark Large Growth Fund	-10.42%	13.18%	22.55%	51.57%	-11.37%
ACIHX American Century Growth Fund G Class	-10.03%	16.26%	27.35%	44.64%	-6.24%

Returns By Period

The year-to-date returns for both investments are quite close, with RPXIX having a -10.42% return and ACIHX slightly higher at -10.03%.

RPXIX

• 1D: 3.36%
• 1M: -4.91%
• YTD: -10.42%
• 6M: -9.63%
• 1Y: 8.55%
• 3Y*: 17.33%
• 5Y*: -0.85%
• 10Y*: 10.49%

ACIHX

• 1D: 3.77%
• 1M: -5.57%
• YTD: -10.03%
• 6M: -9.48%
• 1Y: 16.46%
• 3Y*: 18.66%
• 5Y*: —
• 10Y*: —

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

RPXIX vs. ACIHX - Expense Ratio Comparison

RPXIX has a 0.91% expense ratio, which is higher than ACIHX's 0.01% expense ratio.

RPXIX

RiverPark Large Growth Fund

ACIHX

American Century Growth Fund G Class

Return for Risk

RPXIX vs. ACIHX — Risk / Return Rank

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

RPXIX

RPXIX Risk / Return Rank: 16
RPXIX Sharpe Ratio Rank: 14
RPXIX Sortino Ratio Rank: 16
RPXIX Omega Ratio Rank: 16
RPXIX Calmar Ratio Rank: 18
RPXIX Martin Ratio Rank: 18

ACIHX

ACIHX Risk / Return Rank: 32
ACIHX Sharpe Ratio Rank: 29
ACIHX Sortino Ratio Rank: 34
ACIHX Omega Ratio Rank: 32
ACIHX Calmar Ratio Rank: 34
ACIHX Martin Ratio Rank: 29

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.

RPXIX vs. ACIHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for RiverPark Large Growth Fund (RPXIX) 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.

	RPXIX	ACIHX	Difference
Sharpe ratio Return per unit of total volatility	0.44	0.78	-0.34
Sortino ratio Return per unit of downside risk	0.79	1.28	-0.49
Omega ratio Gain probability vs. loss probability	1.11	1.18	-0.07
Calmar ratio Return relative to maximum drawdown	0.62	1.07	-0.45
Martin ratio Return relative to average drawdown	2.17	3.68	-1.51
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RPXIX vs. ACIHX - Sharpe Ratio Comparison

The current RPXIX Sharpe Ratio is 0.44, which is lower than the ACIHX Sharpe Ratio of 0.78. The chart below compares the historical Sharpe Ratios of RPXIX 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

	RPXIX	ACIHX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.44	0.78	-0.34
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.03	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.43	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.78	-0.31

Correlation

The correlation between RPXIX and ACIHX is 0.93, 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

RPXIX vs. ACIHX - Dividend Comparison

RPXIX's dividend yield for the trailing twelve months is around 10.21%, less than ACIHX's 17.73% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RPXIX RiverPark Large Growth Fund	10.21%	9.15%	7.22%	0.00%	0.01%	3.79%	6.69%	11.76%	15.17%	9.01%	0.54%	1.72%
ACIHX American Century Growth Fund G Class	17.73%	15.95%	5.65%	4.61%	2.86%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

RPXIX vs. ACIHX - Drawdown Comparison

The maximum RPXIX drawdown since its inception was -58.56%, which is greater than ACIHX's maximum drawdown of -24.00%. Use the drawdown chart below to compare losses from any high point for RPXIX and ACIHX.

Drawdown Indicators

	RPXIX	ACIHX	Difference
Max Drawdown Largest peak-to-trough decline	-58.56%	-24.00%	-34.56%
Max Drawdown (1Y) Largest decline over 1 year	-15.28%	-16.40%	+1.12%
Max Drawdown (5Y) Largest decline over 5 years	-58.56%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-58.56%	—	—
Current Drawdown Current decline from peak	-17.48%	-13.25%	-4.23%
Average Drawdown Average peak-to-trough decline	-11.64%	-4.95%	-6.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.37%	4.75%	-0.38%

Volatility

RPXIX vs. ACIHX - Volatility Comparison

The current volatility for RiverPark Large Growth Fund (RPXIX) is 6.12%, while American Century Growth Fund G Class (ACIHX) has a volatility of 6.80%. This indicates that RPXIX 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

	RPXIX	ACIHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.12%	6.80%	-0.68%
Volatility (6M) Calculated over the trailing 6-month period	11.30%	12.60%	-1.30%
Volatility (1Y) Calculated over the trailing 1-year period	21.36%	22.68%	-1.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.39%	21.28%	+5.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.73%	21.28%	+3.45%