NGS vs QQQ: Correlation
How closely do Natural Gas Services Group, Inc. (NGS) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.22, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NGS and QQQ?
Over the past 3 years, NGS and QQQ moved with a correlation of 0.22, which is weak. The past 12 months show a weaker link (-0.11) than the 3-year average (0.22). Over 5 years the correlation is 0.16, and the annualized covariance of weekly returns is 196.9 %².
Among the 13 assets we track against NGS, QQQ sits near the bottom by co-movement, at rank #10. The trailing year gives NGS the advantage: +37.9% versus +26.3%, a 11.6-point spread. Risk is not evenly split, since NGS carries 2.3 times the volatility of the other side.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
NGS vs QQQ: side by side
| NGS (Natural Gas Services Group, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +37.9% | +26.3% |
| 5-year return | +274.7% | +95.4% |
| Volatility (ann.) | 45.0% | 19.6% |
| Beta vs S&P 500 | 0.87 | 1.28 |
| Max drawdown (3Y) | -40.9% | -22.8% |
| Market cap | $0.5B | – |
| P/E (trailing) | 21.7 | – |
| Dividend yield | 1.35% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | NGS | QQQ |
|---|---|---|
| 2022 | +9.5% | -32.6% |
| 2023 | +40.3% | +54.9% |
| 2024 | +66.7% | +25.6% |
| 2025 | +26.5% | +20.8% |
| 2026 | +6.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NGS and QQQ good diversifiers for each other?
Reasonably. At 0.22, NGS and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between NGS and QQQ?
As of 2026-08-27, the correlation of weekly returns between NGS and QQQ is 0.22 over 3 years, -0.11 over 1 year and 0.16 over 5 years.
Is QQQ a good diversifier for NGS?
Reasonably. At 0.22, NGS and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.22 mean?
A reading of 0.22 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
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Related comparisons
Hubs: NGS correlations · QQQ correlations
