ZVGNX vs. AMRGX

Last updated Jun 4, 2026

ZVGNX (Zevenbergen Genea Fund) and AMRGX (American Growth Fund Series One) are both Large Cap Growth Equities funds. Over the past 10 years, ZVGNX returned 20.70%/yr vs 12.23%/yr for AMRGX. A 0.66 correlation means they provide meaningful diversification when combined. ZVGNX charges 1.30%/yr vs 4.07%/yr for AMRGX.

Performance

ZVGNX vs. AMRGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Zevenbergen Genea Fund (ZVGNX) and American Growth Fund Series One (AMRGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ZVGNX achieves a 10.02% return, which is significantly lower than AMRGX's 18.37% return. Over the past 10 years, ZVGNX has outperformed AMRGX with an annualized return of 20.70%, while AMRGX has yielded a comparatively lower 12.23% annualized return.

ZVGNX

• 1D: -0.52%
• 1M: 17.60%
• YTD: 10.02%
• 6M: 6.35%
• 1Y: 18.97%
• 3Y*: 26.32%
• 5Y*: 5.36%
• 10Y*: 20.70%

AMRGX

• 1D: 1.75%
• 1M: 7.84%
• YTD: 18.37%
• 6M: 16.83%
• 1Y: 37.84%
• 3Y*: 19.51%
• 5Y*: 10.60%
• 10Y*: 12.23%

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

ZVGNX vs. AMRGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ZVGNX Zevenbergen Genea Fund	10.02%	15.60%	34.37%	71.41%	-58.89%	-4.33%	144.29%	28.33%	10.78%	51.69%
AMRGX American Growth Fund Series One	18.37%	11.18%	16.61%	24.38%	-19.93%	15.64%	18.65%	36.73%	-9.07%	13.37%

Correlation

The correlation between ZVGNX and AMRGX is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (3Y) Calculated over the trailing 3-year period	0.61
Correlation (5Y) Calculated over the trailing 5-year period	0.66
Correlation (10Y) Calculated over the trailing 10-year period	0.66
Correlation (All Time) Calculated using the full available price history since Sep 3, 2015	0.66

Over the past year, the correlation between ZVGNX and AMRGX has dropped to 0.42 - well below their long-term average of 0.66, suggesting their price drivers have been diverging.

Return for Risk

ZVGNX vs. AMRGX — Risk / Return Rank

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

ZVGNX

ZVGNX Risk / Return Rank: 8
ZVGNX Sharpe Ratio Rank: 9
ZVGNX Sortino Ratio Rank: 9
ZVGNX Omega Ratio Rank: 9
ZVGNX Calmar Ratio Rank: 7
ZVGNX Martin Ratio Rank: 6

AMRGX

AMRGX Risk / Return Rank: 38
AMRGX Sharpe Ratio Rank: 27
AMRGX Sortino Ratio Rank: 29
AMRGX Omega Ratio Rank: 50
AMRGX Calmar Ratio Rank: 55
AMRGX 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.

ZVGNX vs. AMRGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Zevenbergen Genea Fund (ZVGNX) and American Growth Fund Series One (AMRGX). 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.

	ZVGNX	AMRGX	Difference
Sharpe ratio: Return per unit of total volatility	0.72	1.47	-0.75
Sortino ratio: Return per unit of downside risk	1.12	2.23	-1.11
Omega ratio: Gain probability vs. loss probability	1.14	1.39	-0.25
Calmar ratio: Return relative to maximum drawdown	0.62	2.83	-2.21
Martin ratio: Return relative to average drawdown	1.45	6.90	-5.44
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ZVGNX vs. AMRGX - Sharpe Ratio Comparison

The current ZVGNX Sharpe Ratio is 0.72, which is lower than the AMRGX Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of ZVGNX and AMRGX, 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

	ZVGNX	AMRGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.72	1.47	-0.75
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.14	0.48	-0.34
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.59	0.57	+0.02
Sharpe Ratio (All Time) Calculated using the full available price history	0.54	0.12	+0.42

Drawdowns

ZVGNX vs. AMRGX - Drawdown Comparison

The maximum ZVGNX drawdown since its inception was -68.81%, smaller than the maximum AMRGX drawdown of -80.32%. Use the drawdown chart below to compare losses from any high point for ZVGNX and AMRGX.

Drawdown Indicators

	ZVGNX	AMRGX	Difference
Max Drawdown Largest peak-to-trough decline	-68.81%	-80.32%	+11.51%
Max Drawdown (1Y) Largest decline over 1 year	-32.10%	-13.98%	-18.12%
Max Drawdown (3Y) Largest decline over 3 years	-32.10%	-21.15%	-10.95%
Max Drawdown (5Y) Largest decline over 5 years	-66.62%	-35.42%	-31.20%
Max Drawdown (10Y) Largest decline over 10 years	-68.81%	-35.42%	-33.39%
Current Drawdown Current decline from peak	-4.43%	0.00%	-4.43%
Average Drawdown Average peak-to-trough decline	-20.76%	-40.25%	+19.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.59%	5.66%	+7.93%

Volatility

ZVGNX vs. AMRGX - Volatility Comparison

Zevenbergen Genea Fund (ZVGNX) and American Growth Fund Series One (AMRGX) have volatilities of 6.42% and 6.47%, 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

	ZVGNX	AMRGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.42%	6.47%	-0.05%
Volatility (6M) Calculated over the trailing 6-month period	21.33%	24.98%	-3.65%
Volatility (1Y) Calculated over the trailing 1-year period	27.43%	26.89%	+0.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	38.93%	22.21%	+16.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.35%	21.50%	+13.85%

ZVGNX vs. AMRGX - Expense Ratio Comparison

ZVGNX has a 1.30% expense ratio, which is lower than AMRGX's 4.07% expense ratio.

Dividends

ZVGNX vs. AMRGX - Dividend Comparison

ZVGNX has not paid dividends to shareholders, while AMRGX's dividend yield for the trailing twelve months is around 15.06%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
AMRGX American Growth Fund Series One	15.06%	17.82%	12.39%	8.17%	7.77%	12.21%	2.36%	0.00%	0.00%
ZVGNX Zevenbergen Genea Fund	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.36%

Frequently Asked Questions

Can I hold both ZVGNX and AMRGX in my portfolio?

ZVGNX and AMRGX have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ZVGNX or AMRGX?

AMRGX has higher volatility (6.47%) compared to ZVGNX (6.42%). In terms of maximum drawdown, ZVGNX dropped -68.81% vs AMRGX's -80.32%.

Which has better risk-adjusted returns?

AMRGX currently has the higher Sharpe Ratio (1.47 vs 0.72), 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.