NESR vs. PPA

Last updated Jun 24, 2026

NESR (National Energy Services Reunited Corp.) is a stock, while PPA (Invesco Aerospace & Defense ETF) is Aerospace & Defense fund tracking the SPADE Defense Index. Over the past 5 years, NESR returned 10.85%/yr vs 18.41%/yr for PPA. At a 0.30 correlation, their price movements are largely independent.

Performance

NESR vs. PPA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in National Energy Services Reunited Corp. (NESR) and Invesco Aerospace & Defense ETF (PPA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NESR achieves a 60.09% return, which is significantly higher than PPA's 9.76% return.

NESR

• 1D: 0.04%
• 1M: -2.68%
• YTD: 60.09%
• 6M: 66.25%
• 1Y: 338.29%
• 3Y*: 104.53%
• 5Y*: 10.85%
• 10Y*: —

PPA

• 1D: -0.53%
• 1M: 0.95%
• YTD: 9.76%
• 6M: 7.56%
• 1Y: 26.02%
• 3Y*: 28.78%
• 5Y*: 18.41%
• 10Y*: 17.79%

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

NESR vs. PPA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NESR National Energy Services Reunited Corp.	60.09%	74.78%	46.89%	-12.10%	-26.56%	-4.83%	8.88%	5.31%	-12.96%	5.29%
PPA Invesco Aerospace & Defense ETF	9.76%	37.15%	25.28%	18.41%	9.52%	7.09%	0.45%	39.63%	-7.51%	16.44%

Correlation

The correlation between NESR and PPA is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.18
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.29
Correlation (All Time) Calculated using the full available price history since Jun 5, 2017	0.30

The correlation between NESR and PPA shifts across timeframes, from 0.18 (1 year) to 0.30 (all time), reflecting how their relationship changes across market environments.

Return for Risk

NESR vs. PPA — Risk / Return Rank

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

NESR

NESR Risk / Return Rank: 99
NESR Sharpe Ratio Rank: 99
NESR Sortino Ratio Rank: 99
NESR Omega Ratio Rank: 98
NESR Calmar Ratio Rank: 98
NESR Martin Ratio Rank: 99

PPA

PPA Risk / Return Rank: 38
PPA Sharpe Ratio Rank: 38
PPA Sortino Ratio Rank: 40
PPA Omega Ratio Rank: 35
PPA Calmar Ratio Rank: 40
PPA Martin Ratio Rank: 36

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.

NESR vs. PPA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for National Energy Services Reunited Corp. (NESR) and Invesco Aerospace & Defense ETF (PPA). 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.

	NESR	PPA	Difference
Sharpe ratio: Return per unit of total volatility	6.36	1.30	+5.07
Sortino ratio: Return per unit of downside risk	5.93	1.96	+3.97
Omega ratio: Gain probability vs. loss probability	1.72	1.23	+0.50
Calmar ratio: Return relative to maximum drawdown	12.45	1.91	+10.54
Martin ratio: Return relative to average drawdown	42.92	5.29	+37.63

NESR vs. PPA - Sharpe Ratio Comparison

The current NESR Sharpe Ratio is 6.36, which is higher than the PPA Sharpe Ratio of 1.30. The chart below compares the historical Sharpe Ratios of NESR and PPA, 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

NESR vs. PPA - Drawdown Comparison

The maximum NESR drawdown since its inception was -83.12%, which is greater than PPA's maximum drawdown of -57.37%. Use the drawdown chart below to compare losses from any high point for NESR and PPA.

Drawdown Indicators

	NESR	PPA	Difference
Max Drawdown Largest peak-to-trough decline	-83.12%	-57.37%	-25.75%
Max Drawdown (1Y) Largest decline over 1 year	-27.39%	-13.71%	-13.68%
Max Drawdown (3Y) Largest decline over 3 years	-45.64%	-15.24%	-30.40%
Max Drawdown (5Y) Largest decline over 5 years	-81.97%	-18.37%	-63.60%
Max Drawdown (10Y) Largest decline over 10 years	—	-43.92%	—
Current Drawdown Current decline from peak	-6.59%	-7.37%	+0.78%
Average Drawdown Average peak-to-trough decline	-35.82%	-9.18%	-26.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.93%	4.93%	+3.00%

Volatility

NESR vs. PPA - Volatility Comparison

National Energy Services Reunited Corp. (NESR) has a higher volatility of 15.54% compared to Invesco Aerospace & Defense ETF (PPA) at 8.40%. This indicates that NESR's price experiences larger fluctuations and is considered to be riskier than PPA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NESR	PPA	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.54%	8.40%	+7.14%
Volatility (6M) Calculated over the trailing 6-month period	38.43%	17.09%	+21.34%
Volatility (1Y) Calculated over the trailing 1-year period	54.20%	20.15%	+34.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	55.78%	18.70%	+37.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.28%	20.73%	+31.55%

Dividends

NESR vs. PPA - Dividend Comparison

NESR has not paid dividends to shareholders, while PPA's dividend yield for the trailing twelve months is around 0.37%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NESR National Energy Services Reunited Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
PPA Invesco Aerospace & Defense ETF	0.37%	0.42%	0.61%	0.67%	0.83%	0.59%	0.88%	0.95%	0.90%	0.67%	1.70%	1.41%

Frequently Asked Questions

Can I hold both NESR and PPA in my portfolio?

NESR and PPA have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, NESR or PPA?

NESR has higher volatility (15.54%) compared to PPA (8.40%). In terms of maximum drawdown, NESR dropped -83.12% vs PPA's -57.37%.

Which has better risk-adjusted returns?

NESR currently has the higher Sharpe Ratio (6.36 vs 1.30), 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.