IMLPX vs. SRV
IMLPX (MainGate MLP Fund) and SRV (NXG Cushing® Midstream Energy Fund) are both Energy Equities funds. Over the past 10 years, IMLPX returned 9.40%/yr vs 12.06%/yr for SRV. A 0.63 correlation means they provide meaningful diversification when combined. IMLPX charges 1.44%/yr vs 1.00%/yr for SRV.
Performance
IMLPX vs. SRV - Performance Comparison
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Returns By Period
In the year-to-date period, IMLPX achieves a 22.85% return, which is significantly lower than SRV's 36.45% return. Over the past 10 years, IMLPX has underperformed SRV with an annualized return of 9.40%, while SRV has yielded a comparatively higher 12.06% annualized return.
IMLPX
- 1D
- -0.75%
- 1M
- 1.53%
- 6M
- 22.36%
- YTD
- 22.85%
- 1Y
- 23.71%
- 3Y*
- 23.52%
- 5Y*
- 21.72%
- 10Y*
- 9.40%
SRV
- 1D
- -0.50%
- 1M
- 3.70%
- 6M
- 33.78%
- YTD
- 36.45%
- 1Y
- 41.19%
- 3Y*
- 26.02%
- 5Y*
- 27.05%
- 10Y*
- 12.06%
IMLPX vs. SRV - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IMLPX MainGate MLP Fund | 22.85% | 2.77% | 34.76% | 20.26% | 33.69% | 44.24% | -27.81% | 7.14% | -22.20% | -7.92% |
SRV NXG Cushing® Midstream Energy Fund | 36.45% | 5.05% | 50.70% | 19.88% | 20.11% | 50.45% | -41.65% | 33.99% | -21.61% | -4.21% |
Correlation
The correlation between IMLPX and SRV is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.43 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.46 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.60 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.67 |
Correlation (All Time) Calculated using the full available price history since Feb 22, 2011 | 0.63 |
The correlation between IMLPX and SRV shifts across timeframes, from 0.43 (1 year) to 0.67 (10 years), reflecting how their relationship changes across market environments.
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Return for Risk
IMLPX vs. SRV — Risk / Return Rank
IMLPX
SRV
IMLPX vs. SRV - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MainGate MLP Fund (IMLPX) and NXG Cushing® Midstream Energy Fund (SRV). 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.
| IMLPX | SRV | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.37 | ||
| Sortino ratioReturn per unit of downside risk | -0.31 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.37 | -0.08 |
| Calmar ratioReturn relative to maximum drawdown | 3.70 | 3.19 | +0.51 |
| Martin ratioReturn relative to average drawdown | 8.46 | 9.03 | -0.57 |
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Drawdowns
IMLPX vs. SRV - Drawdown Comparison
The maximum IMLPX drawdown since its inception was -76.39%, smaller than the maximum SRV drawdown of -92.97%. Use the drawdown chart below to compare losses from any high point for IMLPX and SRV.
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Drawdown Indicators
| IMLPX | SRV | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -76.39% | -92.97% | +16.58% |
Max Drawdown (1Y)Largest decline over 1 year | -6.47% | -13.13% | +6.66% |
Max Drawdown (3Y)Largest decline over 3 years | -15.93% | -26.26% | +10.33% |
Max Drawdown (5Y)Largest decline over 5 years | -22.00% | -26.26% | +4.26% |
Max Drawdown (10Y)Largest decline over 10 years | -72.19% | -81.70% | +9.51% |
Current DrawdownCurrent decline from peak | -1.80% | -4.81% | +3.01% |
Average DrawdownAverage peak-to-trough decline | -17.61% | -48.54% | +30.93% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.82% | 4.63% | -1.81% |
Volatility
IMLPX vs. SRV - Volatility Comparison
The current volatility for MainGate MLP Fund (IMLPX) is 5.00%, while NXG Cushing® Midstream Energy Fund (SRV) has a volatility of 7.90%. This indicates that IMLPX experiences smaller price fluctuations and is considered to be less risky than SRV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IMLPX | SRV | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.00% | 7.90% | -2.90% |
Volatility (6M)Calculated over the trailing 6-month period | 10.78% | 16.05% | -5.27% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.78% | 19.88% | -6.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.14% | 26.45% | -6.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 26.46% | 38.29% | -11.83% |
IMLPX vs. SRV - Expense Ratio Comparison
IMLPX has a 1.44% expense ratio, which is higher than SRV's 1.00% expense ratio.
Dividends
IMLPX vs. SRV - Dividend Comparison
IMLPX's dividend yield for the trailing twelve months is around 4.22%, less than SRV's 15.14% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IMLPX MainGate MLP Fund | 4.22% | 4.55% | 4.22% | 5.04% | 5.75% | 7.22% | 11.02% | 9.83% | 9.65% | 6.98% | 6.02% | 7.01% |
SRV NXG Cushing® Midstream Energy Fund | 15.14% | 19.31% | 12.85% | 15.56% | 8.85% | 4.72% | 12.05% | 10.59% | 12.73% | 9.07% | 7.95% | 11.01% |
Frequently Asked Questions
IMLPX and SRV have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SRV has higher volatility (7.90%) compared to IMLPX (5.00%). In terms of maximum drawdown, IMLPX dropped -76.39% vs SRV's -92.97%.
SRV currently has the higher Sharpe Ratio (2.11 vs 1.74), 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.
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