ACSI vs. BAMG

Last updated Apr 1, 2026

Compare and contrast key facts about American Customer Satisfaction ETF (ACSI) and Brookstone Growth Stock ETF (BAMG).

ACSI and BAMG are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. ACSI is a passively managed fund by Exponential ETFs that tracks the performance of the American Customer Satisfaction Investable Index. It was launched on Nov 1, 2016. BAMG is an actively managed fund by Brookstone. It was launched on Sep 26, 2023.

Performance

ACSI vs. BAMG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Customer Satisfaction ETF (ACSI) and Brookstone Growth Stock ETF (BAMG). The values are adjusted to include any dividend payments, if applicable.

ACSI vs. BAMG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ACSI American Customer Satisfaction ETF	-3.29%	10.70%	22.51%	15.10%
BAMG Brookstone Growth Stock ETF	-9.00%	17.03%	24.01%	11.91%

Returns By Period

In the year-to-date period, ACSI achieves a -3.29% return, which is significantly higher than BAMG's -9.00% return.

ACSI

• 1D: 2.22%
• 1M: -4.94%
• YTD: -3.29%
• 6M: -2.09%
• 1Y: 9.48%
• 3Y*: 14.24%
• 5Y*: 7.52%
• 10Y*: —

BAMG

• 1D: 3.10%
• 1M: -6.08%
• YTD: -9.00%
• 6M: -4.14%
• 1Y: 14.37%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ACSI vs. BAMG - Expense Ratio Comparison

ACSI has a 0.66% expense ratio, which is lower than BAMG's 0.95% expense ratio.

BAMG

Brookstone Growth Stock ETF

ACSI

American Customer Satisfaction ETF

Return for Risk

ACSI vs. BAMG — Risk / Return Rank

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

ACSI

ACSI Risk / Return Rank: 38
ACSI Sharpe Ratio Rank: 34
ACSI Sortino Ratio Rank: 35
ACSI Omega Ratio Rank: 35
ACSI Calmar Ratio Rank: 42
ACSI Martin Ratio Rank: 46

BAMG

BAMG Risk / Return Rank: 41
BAMG Sharpe Ratio Rank: 37
BAMG Sortino Ratio Rank: 41
BAMG Omega Ratio Rank: 40
BAMG Calmar Ratio Rank: 43
BAMG Martin Ratio Rank: 44

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.

ACSI vs. BAMG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Customer Satisfaction ETF (ACSI) and Brookstone Growth Stock ETF (BAMG). 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.

	ACSI	BAMG	Difference
Sharpe ratio Return per unit of total volatility	0.61	0.71	-0.10
Sortino ratio Return per unit of downside risk	0.98	1.16	-0.18
Omega ratio Gain probability vs. loss probability	1.14	1.16	-0.03
Calmar ratio Return relative to maximum drawdown	1.03	1.13	-0.10
Martin ratio Return relative to average drawdown	4.19	4.21	-0.02
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACSI vs. BAMG - Sharpe Ratio Comparison

The current ACSI Sharpe Ratio is 0.61, which is comparable to the BAMG Sharpe Ratio of 0.71. The chart below compares the historical Sharpe Ratios of ACSI and BAMG, 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

	ACSI	BAMG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.61	0.71	-0.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.45	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.68	0.99	-0.32

Correlation

The correlation between ACSI and BAMG is 0.80, 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

ACSI vs. BAMG - Dividend Comparison

ACSI's dividend yield for the trailing twelve months is around 0.94%, while BAMG has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
ACSI American Customer Satisfaction ETF	0.94%	0.91%	0.69%	1.01%	0.81%	0.31%	0.82%	1.64%	1.59%	1.20%	0.18%
BAMG Brookstone Growth Stock ETF	0.00%	0.00%	1.24%	0.12%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

ACSI vs. BAMG - Drawdown Comparison

The maximum ACSI drawdown since its inception was -34.49%, which is greater than BAMG's maximum drawdown of -21.00%. Use the drawdown chart below to compare losses from any high point for ACSI and BAMG.

Drawdown Indicators

	ACSI	BAMG	Difference
Max Drawdown Largest peak-to-trough decline	-34.49%	-21.00%	-13.49%
Max Drawdown (1Y) Largest decline over 1 year	-9.91%	-13.08%	+3.17%
Max Drawdown (5Y) Largest decline over 5 years	-24.86%	—	—
Current Drawdown Current decline from peak	-5.67%	-10.39%	+4.72%
Average Drawdown Average peak-to-trough decline	-5.47%	-2.56%	-2.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.43%	3.51%	-1.08%

Volatility

ACSI vs. BAMG - Volatility Comparison

The current volatility for American Customer Satisfaction ETF (ACSI) is 4.72%, while Brookstone Growth Stock ETF (BAMG) has a volatility of 5.48%. This indicates that ACSI experiences smaller price fluctuations and is considered to be less risky than BAMG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACSI	BAMG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.72%	5.48%	-0.76%
Volatility (6M) Calculated over the trailing 6-month period	8.54%	11.13%	-2.59%
Volatility (1Y) Calculated over the trailing 1-year period	15.67%	20.26%	-4.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.66%	17.11%	-0.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.50%	17.11%	+0.39%