MDST vs. AMZA

Last updated Jun 24, 2026

MDST (Westwood Salient Enhanced Midstream Income ETF) and AMZA (InfraCap MLP ETF) are both exchange-traded funds - MDST is a Energy Equities fund actively managed by Westwood, while AMZA is a MLPs fund actively managed by Virtus Investment Partners. Both are actively managed. Over the past year, MDST returned 20.94% vs 19.14% for AMZA. A 0.75 correlation means they provide meaningful diversification when combined. MDST charges 0.80%/yr vs 2.01%/yr for AMZA.

Performance

MDST vs. AMZA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Westwood Salient Enhanced Midstream Income ETF (MDST) and InfraCap MLP ETF (AMZA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MDST achieves a 16.53% return, which is significantly lower than AMZA's 22.69% return.

MDST

• 1D: 1.73%
• 1M: -1.91%
• YTD: 16.53%
• 6M: 16.66%
• 1Y: 20.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —

AMZA

• 1D: 2.77%
• 1M: -3.10%
• YTD: 22.69%
• 6M: 22.31%
• 1Y: 19.14%
• 3Y*: 22.70%
• 5Y*: 19.14%
• 10Y*: 5.02%

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

MDST vs. AMZA - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MDST Westwood Salient Enhanced Midstream Income ETF	16.53%	7.09%	17.03%
AMZA InfraCap MLP ETF	22.69%	0.17%	9.16%

Correlation

The correlation between MDST and AMZA is 0.70, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.70
Correlation (All Time) Calculated using the full available price history since Apr 9, 2024	0.75

The correlation between MDST and AMZA has been stable across timeframes, ranging from 0.70 to 0.75 - a consistent structural relationship.

MDST vs. AMZA - Sectors Allocation Comparison

Sectors	MDST	AMZA
Energy	100.0%	99.8%
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	0.2%

Return for Risk

MDST vs. AMZA — Risk / Return Rank

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

MDST

MDST Risk / Return Rank: 55
MDST Sharpe Ratio Rank: 53
MDST Sortino Ratio Rank: 54
MDST Omega Ratio Rank: 52
MDST Calmar Ratio Rank: 67
MDST Martin Ratio Rank: 52

AMZA

AMZA Risk / Return Rank: 30
AMZA Sharpe Ratio Rank: 31
AMZA Sortino Ratio Rank: 31
AMZA Omega Ratio Rank: 28
AMZA Calmar Ratio Rank: 33
AMZA 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.

MDST vs. AMZA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Westwood Salient Enhanced Midstream Income ETF (MDST) and InfraCap MLP ETF (AMZA). 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.

	MDST	AMZA	Difference
Sharpe ratio: Return per unit of total volatility	1.69	1.08	+0.61
Sortino ratio: Return per unit of downside risk	2.42	1.59	+0.82
Omega ratio: Gain probability vs. loss probability	1.30	1.19	+0.12
Calmar ratio: Return relative to maximum drawdown	3.12	1.58	+1.54
Martin ratio: Return relative to average drawdown	8.43	3.87	+4.56

MDST vs. AMZA - Sharpe Ratio Comparison

The current MDST Sharpe Ratio is 1.69, which is higher than the AMZA Sharpe Ratio of 1.08. The chart below compares the historical Sharpe Ratios of MDST and AMZA, 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

MDST vs. AMZA - Drawdown Comparison

The maximum MDST drawdown since its inception was -14.19%, smaller than the maximum AMZA drawdown of -91.46%. Use the drawdown chart below to compare losses from any high point for MDST and AMZA.

Drawdown Indicators

	MDST	AMZA	Difference
Max Drawdown Largest peak-to-trough decline	-14.19%	-91.46%	+77.27%
Max Drawdown (1Y) Largest decline over 1 year	-6.74%	-12.16%	+5.42%
Max Drawdown (3Y) Largest decline over 3 years	—	-18.56%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-25.15%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-86.84%	—
Current Drawdown Current decline from peak	-2.20%	-9.84%	+7.64%
Average Drawdown Average peak-to-trough decline	-2.20%	-44.85%	+42.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.49%	4.95%	-2.46%

Volatility

MDST vs. AMZA - Volatility Comparison

The current volatility for Westwood Salient Enhanced Midstream Income ETF (MDST) is 4.87%, while InfraCap MLP ETF (AMZA) has a volatility of 5.85%. This indicates that MDST experiences smaller price fluctuations and is considered to be less risky than AMZA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MDST	AMZA	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.87%	5.85%	-0.98%
Volatility (6M) Calculated over the trailing 6-month period	8.71%	13.53%	-4.82%
Volatility (1Y) Calculated over the trailing 1-year period	12.45%	17.92%	-5.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.11%	25.67%	-9.56%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.11%	37.20%	-21.09%

MDST vs. AMZA - Expense Ratio Comparison

MDST has a 0.80% expense ratio, which is lower than AMZA's 2.01% expense ratio.

Dividends

MDST vs. AMZA - Dividend Comparison

MDST's dividend yield for the trailing twelve months is around 9.20%, more than AMZA's 8.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMZA InfraCap MLP ETF	8.16%	8.81%	7.29%	9.40%	7.65%	10.24%	22.13%	19.47%	34.46%	24.16%	18.36%	18.21%
MDST Westwood Salient Enhanced Midstream Income ETF	9.20%	10.22%	6.60%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MDST and AMZA in my portfolio?

MDST and AMZA have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MDST or AMZA?

AMZA has higher volatility (5.85%) compared to MDST (4.87%). In terms of maximum drawdown, MDST dropped -14.19% vs AMZA's -91.46%.

Which ETF is better, MDST or AMZA?

On 1-year performance, MDST leads with 20.94% vs 19.14% for AMZA. On fees, MDST is cheaper at 0.80% per year. On volatility, MDST has been the lower-risk option at 4.87%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MDST or AMZA?

Over the 1-year period, MDST has performed better with a 20.94% return vs 19.14%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MDST or AMZA?

MDST is cheaper with a 0.80% expense ratio, compared with 2.01% for AMZA.

Which ETF pays a higher dividend yield, MDST or AMZA?

MDST has the higher dividend yield at 9.20%, compared with 8.16% for AMZA.

What is the main difference between MDST and AMZA?

MDST is categorized as Energy Equities, while AMZA is MLPs. They also come from different issuers: Westwood and Virtus Investment Partners. Their fees differ too: 0.80% for MDST and 2.01% for AMZA.

Which has better risk-adjusted returns?

MDST currently has the higher Sharpe Ratio (1.69 vs 1.08), 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.