FLOWX vs. SRV

Last updated Jun 26, 2026

FLOWX (Fidelity Water Sustainability Fund) and SRV (NXG Cushing® Midstream Energy Fund) are both Energy Equities funds. Over the past 5 years, FLOWX returned 7.80%/yr vs 26.14%/yr for SRV. At a 0.30 correlation, their price movements are largely independent. Both charge a 1.00% expense ratio.

Performance

FLOWX vs. SRV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Water Sustainability Fund (FLOWX) and NXG Cushing® Midstream Energy Fund (SRV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FLOWX achieves a 1.85% return, which is significantly lower than SRV's 32.23% return.

FLOWX

• 1D: 1.48%
• 1M: 1.23%
• YTD: 1.85%
• 6M: 0.63%
• 1Y: 7.94%
• 3Y*: 12.64%
• 5Y*: 7.80%
• 10Y*: —

SRV

• 1D: -1.56%
• 1M: 0.70%
• YTD: 32.23%
• 6M: 34.87%
• 1Y: 40.95%
• 3Y*: 28.69%
• 5Y*: 26.14%
• 10Y*: 12.53%

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

FLOWX vs. SRV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
FLOWX Fidelity Water Sustainability Fund	1.85%	18.02%	8.78%	18.58%	-19.94%	28.52%	35.89%
SRV NXG Cushing® Midstream Energy Fund	32.23%	5.05%	50.70%	19.88%	20.11%	50.45%	24.47%

Correlation

The correlation between FLOWX and SRV is 0.06, 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	0.06
Correlation (3Y) Calculated over the trailing 3-year period	0.20
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (All Time) Calculated using the full available price history since Apr 16, 2020	0.30

Over the past year, the correlation between FLOWX and SRV has dropped to 0.06 - well below their long-term average of 0.30, suggesting their price drivers have been diverging.

Return for Risk

FLOWX vs. SRV — Risk / Return Rank

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

FLOWX

FLOWX Risk / Return Rank: 8
FLOWX Sharpe Ratio Rank: 8
FLOWX Sortino Ratio Rank: 8
FLOWX Omega Ratio Rank: 8
FLOWX Calmar Ratio Rank: 8
FLOWX Martin Ratio Rank: 7

SRV

SRV Risk / Return Rank: 66
SRV Sharpe Ratio Rank: 75
SRV Sortino Ratio Rank: 62
SRV Omega Ratio Rank: 67
SRV Calmar Ratio Rank: 79
SRV Martin Ratio Rank: 50

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.

FLOWX vs. SRV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Water Sustainability Fund (FLOWX) 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.

	FLOWX	SRV	Difference
Sharpe ratio: Return per unit of total volatility	0.51	2.12	-1.61
Sortino ratio: Return per unit of downside risk	0.80	2.72	-1.91
Omega ratio: Gain probability vs. loss probability	1.10	1.37	-0.28
Calmar ratio: Return relative to maximum drawdown	0.58	3.13	-2.56
Martin ratio: Return relative to average drawdown	1.46	8.90	-7.44

FLOWX vs. SRV - Sharpe Ratio Comparison

The current FLOWX Sharpe Ratio is 0.51, which is lower than the SRV Sharpe Ratio of 2.12. The chart below compares the historical Sharpe Ratios of FLOWX and SRV, 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

FLOWX vs. SRV - Drawdown Comparison

The maximum FLOWX drawdown since its inception was -30.63%, smaller than the maximum SRV drawdown of -92.97%. Use the drawdown chart below to compare losses from any high point for FLOWX and SRV.

Drawdown Indicators

	FLOWX	SRV	Difference
Max Drawdown Largest peak-to-trough decline	-30.63%	-92.97%	+62.34%
Max Drawdown (1Y) Largest decline over 1 year	-12.84%	-13.13%	+0.29%
Max Drawdown (3Y) Largest decline over 3 years	-16.13%	-26.26%	+10.13%
Max Drawdown (5Y) Largest decline over 5 years	-30.63%	-26.26%	-4.37%
Max Drawdown (10Y) Largest decline over 10 years	—	-81.70%	—
Current Drawdown Current decline from peak	-8.74%	-7.75%	-0.99%
Average Drawdown Average peak-to-trough decline	-7.40%	-48.63%	+41.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.05%	4.61%	+0.44%

Volatility

FLOWX vs. SRV - Volatility Comparison

The current volatility for Fidelity Water Sustainability Fund (FLOWX) is 4.61%, while NXG Cushing® Midstream Energy Fund (SRV) has a volatility of 7.70%. This indicates that FLOWX 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.

Volatility by Period

	FLOWX	SRV	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.61%	7.70%	-3.09%
Volatility (6M) Calculated over the trailing 6-month period	11.67%	15.88%	-4.21%
Volatility (1Y) Calculated over the trailing 1-year period	14.64%	19.42%	-4.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.88%	26.46%	-8.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.15%	38.29%	-20.14%

FLOWX vs. SRV - Expense Ratio Comparison

Both FLOWX and SRV have an expense ratio of 1.00%.

Dividends

FLOWX vs. SRV - Dividend Comparison

FLOWX's dividend yield for the trailing twelve months is around 2.88%, less than SRV's 15.62% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FLOWX Fidelity Water Sustainability Fund	2.88%	2.93%	2.51%	0.42%	0.08%	1.41%	1.49%	0.00%	0.00%	0.00%	0.00%	0.00%
SRV NXG Cushing® Midstream Energy Fund	15.62%	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

Can I hold both FLOWX and SRV in my portfolio?

FLOWX and SRV have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FLOWX or SRV?

SRV has higher volatility (7.70%) compared to FLOWX (4.61%). In terms of maximum drawdown, FLOWX dropped -30.63% vs SRV's -92.97%.

Which has better risk-adjusted returns?

SRV currently has the higher Sharpe Ratio (2.12 vs 0.51), 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.