SOLR vs. MDST

Last updated Jun 4, 2026

SOLR (SmartETFs Sustainable Energy II ETF) and MDST (Westwood Salient Enhanced Midstream Income ETF) are both Energy Equities funds. Both are actively managed. Over the past year, SOLR returned 42.02% vs 17.62% for MDST. At a 0.25 correlation, their price movements are largely independent. SOLR charges 0.79%/yr vs 0.80%/yr for MDST.

Performance

SOLR vs. MDST - Performance Comparison

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

Returns By Period

In the year-to-date period, SOLR achieves a 19.19% return, which is significantly higher than MDST's 14.94% return.

SOLR

• 1D: -0.46%
• 1M: 7.74%
• YTD: 19.19%
• 6M: 18.35%
• 1Y: 42.02%
• 3Y*: 6.70%
• 5Y*: 4.70%
• 10Y*: —

MDST

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

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

SOLR vs. MDST - Yearly Performance Comparison

	2026 (YTD)	2025	2024
SOLR SmartETFs Sustainable Energy II ETF	19.19%	26.72%	-10.89%
MDST Westwood Salient Enhanced Midstream Income ETF	14.94%	7.09%	17.29%

Correlation

The correlation between SOLR and MDST is -0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.01
Correlation (All Time) Calculated using the full available price history since Apr 10, 2024	0.25

The correlation between SOLR and MDST shifts across timeframes, from -0.01 (1 year) to 0.25 (all time), reflecting how their relationship changes across market environments.

SOLR vs. MDST - Sectors Allocation Comparison

Sectors	SOLR	MDST
Industrials	46.4%	-
Technology	18.5%	-
Utilities	15.0%	-
Energy	6.8%	100.0%
Basic Materials	5.4%	-
Financial Services	5.3%	-
Consumer Cyclical	2.6%	-
Communication Services	-	-
Consumer Defensive	-	-
Healthcare	-	-
Real Estate	-	-

Return for Risk

SOLR vs. MDST — Risk / Return Rank

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

SOLR

SOLR Risk / Return Rank: 62
SOLR Sharpe Ratio Rank: 67
SOLR Sortino Ratio Rank: 64
SOLR Omega Ratio Rank: 60
SOLR Calmar Ratio Rank: 59
SOLR Martin Ratio Rank: 59

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

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.

SOLR vs. MDST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SmartETFs Sustainable Energy II ETF (SOLR) and Westwood Salient Enhanced Midstream Income ETF (MDST). 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.

	SOLR	MDST	Difference
Sharpe ratio: Return per unit of total volatility	2.17	1.47	+0.71
Sortino ratio: Return per unit of downside risk	2.94	2.13	+0.81
Omega ratio: Gain probability vs. loss probability	1.36	1.27	+0.09
Calmar ratio: Return relative to maximum drawdown	2.89	2.63	+0.26
Martin ratio: Return relative to average drawdown	10.24	7.46	+2.78
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SOLR vs. MDST - Sharpe Ratio Comparison

The current SOLR Sharpe Ratio is 2.17, which is higher than the MDST Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of SOLR and MDST, 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

	SOLR	MDST	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.17	1.47	+0.71
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.21	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	1.16	-0.80

Drawdowns

SOLR vs. MDST - Drawdown Comparison

The maximum SOLR drawdown since its inception was -39.46%, which is greater than MDST's maximum drawdown of -14.19%. Use the drawdown chart below to compare losses from any high point for SOLR and MDST.

Drawdown Indicators

	SOLR	MDST	Difference
Max Drawdown Largest peak-to-trough decline	-39.46%	-14.19%	-25.27%
Max Drawdown (1Y) Largest decline over 1 year	-14.63%	-6.74%	-7.89%
Max Drawdown (3Y) Largest decline over 3 years	-34.66%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-39.46%	—	—
Current Drawdown Current decline from peak	-0.46%	-3.53%	+3.07%
Average Drawdown Average peak-to-trough decline	-15.59%	-2.17%	-13.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.11%	2.37%	+1.74%

Volatility

SOLR vs. MDST - Volatility Comparison

SmartETFs Sustainable Energy II ETF (SOLR) has a higher volatility of 7.61% compared to Westwood Salient Enhanced Midstream Income ETF (MDST) at 4.87%. This indicates that SOLR's price experiences larger fluctuations and is considered to be riskier than MDST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SOLR	MDST	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.61%	4.87%	+2.74%
Volatility (6M) Calculated over the trailing 6-month period	15.45%	8.36%	+7.09%
Volatility (1Y) Calculated over the trailing 1-year period	19.46%	12.12%	+7.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.16%	16.11%	+6.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.73%	16.11%	+6.62%

SOLR vs. MDST - Expense Ratio Comparison

SOLR has a 0.79% expense ratio, which is lower than MDST's 0.80% expense ratio.

Dividends

SOLR vs. MDST - Dividend Comparison

SOLR's dividend yield for the trailing twelve months is around 0.56%, less than MDST's 9.33% yield.

Position	TTM	2025	2024	2023	2022	2021
MDST Westwood Salient Enhanced Midstream Income ETF	9.33%	10.22%	6.60%	0.00%	0.00%	0.00%
SOLR SmartETFs Sustainable Energy II ETF	0.56%	0.67%	0.93%	0.42%	1.29%	2.62%

Frequently Asked Questions

Can I hold both SOLR and MDST in my portfolio?

SOLR and MDST have a correlation of -0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SOLR or MDST?

SOLR has higher volatility (7.61%) compared to MDST (4.87%). In terms of maximum drawdown, SOLR dropped -39.46% vs MDST's -14.19%.

Which ETF is better, SOLR or MDST?

On 1-year performance, SOLR leads with 42.02% vs 17.62% for MDST. On fees, SOLR is cheaper at 0.79% 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, SOLR or MDST?

Over the 1-year period, SOLR has performed better with a 42.02% return vs 17.62%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SOLR or MDST?

SOLR is cheaper with a 0.79% expense ratio, compared with 0.80% for MDST.

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

MDST has the higher dividend yield at 9.33%, compared with 0.56% for SOLR.

What is the main difference between SOLR and MDST?

They also come from different issuers: SmartETFs and Westwood. Their fees differ too: 0.79% for SOLR and 0.80% for MDST.

Which has better risk-adjusted returns?

SOLR currently has the higher Sharpe Ratio (2.17 vs 1.47), 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.