XES vs. MDST

Last updated Jun 4, 2026

XES (SPDR S&P Oil & Gas Equipment & Services ETF) and MDST (Westwood Salient Enhanced Midstream Income ETF) are both Energy Equities funds. XES is passively managed, while MDST is actively managed. Over the past year, XES returned 97.14% vs 17.62% for MDST. At a 0.48 correlation, their price movements are largely independent. XES charges 0.35%/yr vs 0.80%/yr for MDST.

Performance

XES vs. MDST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR S&P Oil & Gas Equipment & Services ETF (XES) 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, XES achieves a 50.69% return, which is significantly higher than MDST's 14.94% return.

XES

• 1D: -0.56%
• 1M: -4.59%
• YTD: 50.69%
• 6M: 43.67%
• 1Y: 97.14%
• 3Y*: 19.81%
• 5Y*: 13.75%
• 10Y*: -2.47%

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)

XES vs. MDST - Yearly Performance Comparison

	2026 (YTD)	2025	2024
XES SPDR S&P Oil & Gas Equipment & Services ETF	50.69%	5.89%	-17.10%
MDST Westwood Salient Enhanced Midstream Income ETF	14.94%	7.09%	17.29%

Correlation

The correlation between XES and MDST is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.36
Correlation (All Time) Calculated using the full available price history since Apr 10, 2024	0.48

The correlation between XES and MDST shifts across timeframes, from 0.36 (1 year) to 0.48 (all time), reflecting how their relationship changes across market environments.

XES vs. MDST - Sectors Allocation Comparison

Sectors	XES	MDST
Energy	97.5%	100.0%
Industrials	2.5%	-
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Financial Services	-	-
Healthcare	-	-
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

XES vs. MDST — Risk / Return Rank

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

XES

XES Risk / Return Rank: 89
XES Sharpe Ratio Rank: 91
XES Sortino Ratio Rank: 85
XES Omega Ratio Rank: 79
XES Calmar Ratio Rank: 96
XES Martin Ratio Rank: 94

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.

XES vs. MDST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR S&P Oil & Gas Equipment & Services ETF (XES) 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.

	XES	MDST	Difference
Sharpe ratio Return per unit of total volatility	3.23	1.47	+1.76
Sortino ratio Return per unit of downside risk	3.86	2.13	+1.73
Omega ratio Gain probability vs. loss probability	1.48	1.27	+0.21
Calmar ratio Return relative to maximum drawdown	9.93	2.63	+7.30
Martin ratio Return relative to average drawdown	26.79	7.46	+19.33
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

XES vs. MDST - Sharpe Ratio Comparison

The current XES Sharpe Ratio is 3.23, which is higher than the MDST Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of XES 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

	XES	MDST	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.23	1.47	+1.76
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.35	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.05	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.07	1.16	-1.24

Drawdowns

XES vs. MDST - Drawdown Comparison

The maximum XES drawdown since its inception was -95.65%, which is greater than MDST's maximum drawdown of -14.19%. Use the drawdown chart below to compare losses from any high point for XES and MDST.

Drawdown Indicators

	XES	MDST	Difference
Max Drawdown Largest peak-to-trough decline	-95.65%	-14.19%	-81.46%
Max Drawdown (1Y) Largest decline over 1 year	-9.84%	-6.74%	-3.10%
Max Drawdown (3Y) Largest decline over 3 years	-45.95%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-45.95%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-91.23%	—	—
Current Drawdown Current decline from peak	-70.90%	-3.53%	-67.37%
Average Drawdown Average peak-to-trough decline	-54.36%	-2.17%	-52.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.64%	2.37%	+1.27%

Volatility

XES vs. MDST - Volatility Comparison

SPDR S&P Oil & Gas Equipment & Services ETF (XES) has a higher volatility of 8.22% compared to Westwood Salient Enhanced Midstream Income ETF (MDST) at 4.87%. This indicates that XES'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

	XES	MDST	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.22%	4.87%	+3.35%
Volatility (6M) Calculated over the trailing 6-month period	20.52%	8.36%	+12.16%
Volatility (1Y) Calculated over the trailing 1-year period	30.50%	12.12%	+18.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	39.04%	16.11%	+22.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	45.04%	16.11%	+28.93%

XES vs. MDST - Expense Ratio Comparison

XES has a 0.35% expense ratio, which is lower than MDST's 0.80% expense ratio.

Dividends

XES vs. MDST - Dividend Comparison

XES's dividend yield for the trailing twelve months is around 1.12%, less than MDST's 9.33% 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%
XES SPDR S&P Oil & Gas Equipment & Services ETF	1.12%	1.69%	1.31%	0.66%	0.36%	1.81%	1.33%	1.43%	1.14%	1.68%	0.64%	2.47%

Frequently Asked Questions

Can I hold both XES and MDST in my portfolio?

XES and MDST have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, XES or MDST?

XES has higher volatility (8.22%) compared to MDST (4.87%). In terms of maximum drawdown, XES dropped -95.65% vs MDST's -14.19%.

Which ETF is better, XES or MDST?

On 1-year performance, XES leads with 97.14% vs 17.62% for MDST. On fees, XES is cheaper at 0.35% 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, XES or MDST?

Over the 1-year period, XES has performed better with a 97.14% return vs 17.62%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, XES or MDST?

XES is cheaper with a 0.35% expense ratio, compared with 0.80% for MDST.

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

MDST has the higher dividend yield at 9.33%, compared with 1.12% for XES.

What is the main difference between XES and MDST?

They also come from different issuers: State Street and Westwood. Their fees differ too: 0.35% for XES and 0.80% for MDST.

Which has better risk-adjusted returns?

XES currently has the higher Sharpe Ratio (3.23 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.