AQWA vs. TBLU

Last updated Jun 24, 2026

AQWA (Global X Clean Water ETF) and TBLU (Tortoise Global Water Fund) are both Water Equities funds - AQWA tracks the Solactive Global Clean Water Industry Index while TBLU tracks the Tortoise Global Water ESG Net Total Return Index. Both are passively managed. Over the past 5 years, AQWA returned 5.21%/yr vs 4.24%/yr for TBLU. Their correlation of 0.89 suggests significant overlap in exposure. AQWA charges 0.50%/yr vs 0.40%/yr for TBLU.

Performance

AQWA vs. TBLU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Clean Water ETF (AQWA) and Tortoise Global Water Fund (TBLU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AQWA achieves a 0.45% return, which is significantly higher than TBLU's -0.84% return.

AQWA

• 1D: -0.81%
• 1M: 0.95%
• YTD: 0.45%
• 6M: -0.87%
• 1Y: 1.37%
• 3Y*: 9.09%
• 5Y*: 5.21%
• 10Y*: —

TBLU

• 1D: -0.58%
• 1M: 0.88%
• YTD: -0.84%
• 6M: -2.19%
• 1Y: -0.84%
• 3Y*: 9.69%
• 5Y*: 4.24%
• 10Y*: —

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

AQWA vs. TBLU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
AQWA Global X Clean Water ETF	0.45%	13.15%	4.34%	20.13%	-19.89%	15.67%
TBLU Tortoise Global Water Fund	-0.84%	11.82%	8.54%	20.95%	-25.99%	19.82%

Correlation

The correlation between AQWA and TBLU is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (All Time) Calculated using the full available price history since Apr 12, 2021	0.89

The correlation between AQWA and TBLU has been stable across timeframes, ranging from 0.88 to 0.91 - a consistent structural relationship.

Return for Risk

AQWA vs. TBLU — Risk / Return Rank

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

AQWA

AQWA Risk / Return Rank: 9
AQWA Sharpe Ratio Rank: 10
AQWA Sortino Ratio Rank: 9
AQWA Omega Ratio Rank: 9
AQWA Calmar Ratio Rank: 10
AQWA Martin Ratio Rank: 10

TBLU

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

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.

AQWA vs. TBLU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Clean Water ETF (AQWA) and Tortoise Global Water Fund (TBLU). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	AQWA	TBLU	Difference
Sharpe ratio: Return per unit of total volatility	0.10	-0.06	+0.15
Sortino ratio: Return per unit of downside risk	0.24	0.02	+0.21
Omega ratio: Gain probability vs. loss probability	1.03	1.00	+0.03
Calmar ratio: Return relative to maximum drawdown	0.11	-0.06	+0.18
Martin ratio: Return relative to average drawdown	0.26	-0.14	+0.40

AQWA vs. TBLU - Sharpe Ratio Comparison

The current AQWA Sharpe Ratio is 0.10, which is higher than the TBLU Sharpe Ratio of -0.06. The chart below compares the historical Sharpe Ratios of AQWA and TBLU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

AQWA vs. TBLU - Drawdown Comparison

The maximum AQWA drawdown since its inception was -29.44%, smaller than the maximum TBLU drawdown of -37.58%. Use the drawdown chart below to compare losses from any high point for AQWA and TBLU.

Drawdown Indicators

	AQWA	TBLU	Difference
Max Drawdown Largest peak-to-trough decline	-29.44%	-37.58%	+8.14%
Max Drawdown (1Y) Largest decline over 1 year	-12.34%	-13.17%	+0.83%
Max Drawdown (3Y) Largest decline over 3 years	-14.55%	-15.42%	+0.87%
Max Drawdown (5Y) Largest decline over 5 years	-29.44%	-35.36%	+5.92%
Current Drawdown Current decline from peak	-9.77%	-10.61%	+0.84%
Average Drawdown Average peak-to-trough decline	-8.28%	-8.16%	-0.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.39%	5.98%	-0.59%

Volatility

AQWA vs. TBLU - Volatility Comparison

Global X Clean Water ETF (AQWA) and Tortoise Global Water Fund (TBLU) have volatilities of 4.43% and 4.36%, 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

	AQWA	TBLU	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.43%	4.36%	+0.07%
Volatility (6M) Calculated over the trailing 6-month period	11.18%	11.78%	-0.60%
Volatility (1Y) Calculated over the trailing 1-year period	14.54%	14.73%	-0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.79%	17.35%	-0.56%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.65%	18.95%	-2.30%

AQWA vs. TBLU - Expense Ratio Comparison

AQWA has a 0.50% expense ratio, which is higher than TBLU's 0.40% expense ratio.

Dividends

AQWA vs. TBLU - Dividend Comparison

AQWA's dividend yield for the trailing twelve months is around 1.46%, less than TBLU's 3.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
AQWA Global X Clean Water ETF	1.46%	1.47%	1.40%	1.53%	1.56%	1.20%	0.00%	0.00%	0.00%	0.00%
TBLU Tortoise Global Water Fund	3.33%	3.31%	1.34%	1.46%	1.64%	1.55%	1.42%	1.58%	1.35%	1.32%

Frequently Asked Questions

Can I hold both AQWA and TBLU in my portfolio?

With a correlation of 0.91, AQWA and TBLU move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, AQWA or TBLU?

AQWA has higher volatility (4.43%) compared to TBLU (4.36%). In terms of maximum drawdown, AQWA dropped -29.44% vs TBLU's -37.58%.

Which ETF is better, AQWA or TBLU?

On 5-year performance, AQWA leads with 5.21% vs 4.24% for TBLU. On fees, TBLU is cheaper at 0.40% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, AQWA or TBLU?

Over the 5-year period, AQWA has performed better with a 5.21% return vs 4.24%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, AQWA or TBLU?

TBLU is cheaper with a 0.40% expense ratio, compared with 0.50% for AQWA.

Which ETF pays a higher dividend yield, AQWA or TBLU?

TBLU has the higher dividend yield at 3.33%, compared with 1.46% for AQWA.

What is the main difference between AQWA and TBLU?

AQWA tracks Solactive Global Clean Water Industry Index, while TBLU tracks Tortoise Global Water ESG Net Total Return Index. They also come from different issuers: Global X and Tortoise. Their fees differ too: 0.50% for AQWA and 0.40% for TBLU.

Which has better risk-adjusted returns?

AQWA currently has the higher Sharpe Ratio (0.10 vs -0.06), 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.