MDST vs. TYG

Last updated Jun 4, 2026

MDST (Westwood Salient Enhanced Midstream Income ETF) and TYG (Tortoise Energy Infrastructure Closed Fund) are both funds - MDST is a Energy Equities fund actively managed by Westwood, while TYG is a MLPs fund actively managed by Tortoise. Both are actively managed. Over the past year, MDST returned 17.62% vs 18.81% for TYG. A 0.56 correlation means they provide meaningful diversification when combined. MDST charges 0.80%/yr vs 2.90%/yr for TYG.

Performance

MDST vs. TYG - Performance Comparison

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

Returns By Period

In the year-to-date period, MDST achieves a 14.94% return, which is significantly higher than TYG's 12.81% return.

MDST

• 1D: 0.14%
• 1M: -0.74%
• YTD: 14.94%
• 6M: 14.77%
• 1Y: 17.62%
• 3Y*: —
• 5Y*: —
• 10Y*: —

TYG

• 1D: -1.17%
• 1M: -11.67%
• YTD: 12.81%
• 6M: 7.85%
• 1Y: 18.81%
• 3Y*: 28.24%
• 5Y*: 19.47%
• 10Y*: -1.19%

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

MDST vs. TYG - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MDST Westwood Salient Enhanced Midstream Income ETF	14.94%	7.09%	17.29%
TYG Tortoise Energy Infrastructure Closed Fund	12.81%	8.46%	42.30%

Correlation

The correlation between MDST and TYG is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (All Time) Calculated using the full available price history since Apr 10, 2024	0.56

The correlation between MDST and TYG shifts across timeframes, from 0.39 (1 year) to 0.56 (all time), reflecting how their relationship changes across market environments.

Return for Risk

MDST vs. TYG — Risk / Return Rank

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

MDST

MDST Risk / Return Rank: 44
MDST Sharpe Ratio Rank: 41
MDST Sortino Ratio Rank: 42
MDST Omega Ratio Rank: 41
MDST Calmar Ratio Rank: 53
MDST Martin Ratio Rank: 45

TYG

TYG Risk / Return Rank: 15
TYG Sharpe Ratio Rank: 13
TYG Sortino Ratio Rank: 12
TYG Omega Ratio Rank: 14
TYG Calmar Ratio Rank: 19
TYG Martin Ratio Rank: 19

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. TYG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Westwood Salient Enhanced Midstream Income ETF (MDST) and Tortoise Energy Infrastructure Closed Fund (TYG). 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.

	MDST	TYG	Difference
Sharpe ratio: Return per unit of total volatility	1.47	0.97	+0.50
Sortino ratio: Return per unit of downside risk	2.13	1.37	+0.76
Omega ratio: Gain probability vs. loss probability	1.27	1.19	+0.07
Calmar ratio: Return relative to maximum drawdown	2.63	1.62	+1.01
Martin ratio: Return relative to average drawdown	7.46	5.20	+2.26
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MDST vs. TYG - Sharpe Ratio Comparison

The current MDST Sharpe Ratio is 1.47, which is higher than the TYG Sharpe Ratio of 0.97. The chart below compares the historical Sharpe Ratios of MDST and TYG, 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

	MDST	TYG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.47	0.97	+0.50
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.81	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.02	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.16	0.09	+1.07

Drawdowns

MDST vs. TYG - Drawdown Comparison

The maximum MDST drawdown since its inception was -14.19%, smaller than the maximum TYG drawdown of -95.34%. Use the drawdown chart below to compare losses from any high point for MDST and TYG.

Drawdown Indicators

	MDST	TYG	Difference
Max Drawdown Largest peak-to-trough decline	-14.19%	-95.34%	+81.15%
Max Drawdown (1Y) Largest decline over 1 year	-6.74%	-11.67%	+4.93%
Max Drawdown (3Y) Largest decline over 3 years	—	-25.08%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-25.08%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-94.98%	—
Current Drawdown Current decline from peak	-3.53%	-35.65%	+32.12%
Average Drawdown Average peak-to-trough decline	-2.17%	-29.42%	+27.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.37%	3.63%	-1.26%

Volatility

MDST vs. TYG - Volatility Comparison

The current volatility for Westwood Salient Enhanced Midstream Income ETF (MDST) is 4.87%, while Tortoise Energy Infrastructure Closed Fund (TYG) has a volatility of 7.20%. This indicates that MDST experiences smaller price fluctuations and is considered to be less risky than TYG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MDST	TYG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.87%	7.20%	-2.33%
Volatility (6M) Calculated over the trailing 6-month period	8.36%	17.34%	-8.98%
Volatility (1Y) Calculated over the trailing 1-year period	12.12%	19.45%	-7.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.11%	24.06%	-7.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.11%	51.16%	-35.05%

MDST vs. TYG - Expense Ratio Comparison

MDST has a 0.80% expense ratio, which is lower than TYG's 2.90% expense ratio.

Dividends

MDST vs. TYG - Dividend Comparison

MDST's dividend yield for the trailing twelve months is around 9.33%, less than TYG's 12.95% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MDST Westwood Salient Enhanced Midstream Income ETF	9.33%	10.22%	6.60%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
TYG Tortoise Energy Infrastructure Closed Fund	12.95%	11.25%	7.96%	9.87%	8.94%	5.27%	10.85%	14.61%	13.17%	9.01%	8.54%	13.95%

Frequently Asked Questions

Can I hold both MDST and TYG in my portfolio?

MDST and TYG have a correlation of 0.39, 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 TYG?

TYG has higher volatility (7.20%) compared to MDST (4.87%). In terms of maximum drawdown, MDST dropped -14.19% vs TYG's -95.34%.

Which has better risk-adjusted returns?

MDST currently has the higher Sharpe Ratio (1.47 vs 0.97), 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.