AMAEX vs. VOOG

Last updated Apr 1, 2026

Compare and contrast key facts about American Century Small Cap Dividend Fund (AMAEX) and Vanguard S&P 500 Growth ETF (VOOG).

AMAEX is managed by American Century. It was launched on Apr 4, 2022. VOOG is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Growth Index. It was launched on Apr 5, 2019.

Performance

AMAEX vs. VOOG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Small Cap Dividend Fund (AMAEX) and Vanguard S&P 500 Growth ETF (VOOG). The values are adjusted to include any dividend payments, if applicable.

AMAEX vs. VOOG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
AMAEX American Century Small Cap Dividend Fund	2.40%	-4.42%	11.05%	8.86%	-2.96%
VOOG Vanguard S&P 500 Growth ETF	-8.17%	22.11%	35.89%	29.96%	-15.67%

Returns By Period

In the year-to-date period, AMAEX achieves a 2.40% return, which is significantly higher than VOOG's -8.17% return.

AMAEX

• 1D: -0.10%
• 1M: -6.22%
• YTD: 2.40%
• 6M: 2.65%
• 1Y: 3.04%
• 3Y*: 5.73%
• 5Y*: —
• 10Y*: —

VOOG

• 1D: 4.02%
• 1M: -5.34%
• YTD: -8.17%
• 6M: -6.12%
• 1Y: 22.53%
• 3Y*: 21.80%
• 5Y*: 12.17%
• 10Y*: 15.71%

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

AMAEX vs. VOOG - Expense Ratio Comparison

AMAEX has a 1.13% expense ratio, which is higher than VOOG's 0.07% expense ratio.

AMAEX

American Century Small Cap Dividend Fund

VOOG

Vanguard S&P 500 Growth ETF

Return for Risk

AMAEX vs. VOOG — Risk / Return Rank

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

AMAEX

AMAEX Risk / Return Rank: 8
AMAEX Sharpe Ratio Rank: 8
AMAEX Sortino Ratio Rank: 8
AMAEX Omega Ratio Rank: 8
AMAEX Calmar Ratio Rank: 8
AMAEX Martin Ratio Rank: 8

VOOG

VOOG Risk / Return Rank: 66
VOOG Sharpe Ratio Rank: 61
VOOG Sortino Ratio Rank: 66
VOOG Omega Ratio Rank: 65
VOOG Calmar Ratio Rank: 70
VOOG Martin Ratio Rank: 69

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.

AMAEX vs. VOOG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Small Cap Dividend Fund (AMAEX) and Vanguard S&P 500 Growth ETF (VOOG). 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.

	AMAEX	VOOG	Difference
Sharpe ratio Return per unit of total volatility	0.16	1.02	-0.86
Sortino ratio Return per unit of downside risk	0.38	1.58	-1.20
Omega ratio Gain probability vs. loss probability	1.05	1.22	-0.17
Calmar ratio Return relative to maximum drawdown	0.13	1.66	-1.53
Martin ratio Return relative to average drawdown	0.39	6.53	-6.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AMAEX vs. VOOG - Sharpe Ratio Comparison

The current AMAEX Sharpe Ratio is 0.16, which is lower than the VOOG Sharpe Ratio of 1.02. The chart below compares the historical Sharpe Ratios of AMAEX and VOOG, 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

	AMAEX	VOOG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.16	1.02	-0.86
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.58	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.76	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.18	0.83	-0.65

Correlation

The correlation between AMAEX and VOOG is 0.58, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

AMAEX vs. VOOG - Dividend Comparison

AMAEX's dividend yield for the trailing twelve months is around 2.10%, more than VOOG's 0.54% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMAEX American Century Small Cap Dividend Fund	2.10%	2.57%	1.37%	1.99%	2.56%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOOG Vanguard S&P 500 Growth ETF	0.54%	0.49%	0.49%	1.12%	0.93%	0.53%	0.88%	1.26%	1.34%	1.32%	1.47%	1.56%

Drawdowns

AMAEX vs. VOOG - Drawdown Comparison

The maximum AMAEX drawdown since its inception was -23.97%, smaller than the maximum VOOG drawdown of -32.73%. Use the drawdown chart below to compare losses from any high point for AMAEX and VOOG.

Drawdown Indicators

	AMAEX	VOOG	Difference
Max Drawdown Largest peak-to-trough decline	-23.97%	-32.73%	+8.76%
Max Drawdown (1Y) Largest decline over 1 year	-15.37%	-13.71%	-1.66%
Max Drawdown (5Y) Largest decline over 5 years	—	-32.73%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-32.73%	—
Current Drawdown Current decline from peak	-8.72%	-10.25%	+1.53%
Average Drawdown Average peak-to-trough decline	-7.72%	-5.00%	-2.72%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.20%	3.50%	+1.70%

Volatility

AMAEX vs. VOOG - Volatility Comparison

The current volatility for American Century Small Cap Dividend Fund (AMAEX) is 4.70%, while Vanguard S&P 500 Growth ETF (VOOG) has a volatility of 7.15%. This indicates that AMAEX experiences smaller price fluctuations and is considered to be less risky than VOOG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMAEX	VOOG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.70%	7.15%	-2.45%
Volatility (6M) Calculated over the trailing 6-month period	12.02%	12.62%	-0.60%
Volatility (1Y) Calculated over the trailing 1-year period	22.10%	22.25%	-0.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.87%	21.16%	-1.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.87%	20.65%	-0.78%