CLNE vs VXX: Correlation
Clean Energy Fuels Corp. (CLNE) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) show a negative relationship: their 3-year correlation of weekly returns is -0.30.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CLNE and VXX?
On 3 years of weekly data the CLNE/VXX correlation comes out at -0.30, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.05) runs above the 3-year figure (-0.30). The 5-year figure is -0.30, and annualized covariance runs at -1067.3 %².
Out of 10 assets tracked against CLNE, VXX lands near the bottom at #9. On 12-month performance CLNE holds a 10.3-point edge, -39.4% against -49.7%.
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.
CLNE vs VXX: side by side
| CLNE (Clean Energy Fuels Corp.) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | -39.4% | -49.7% |
| 5-year return | -79.6% | -95.6% |
| Volatility (ann.) | 58.8% | 60.9% |
| Beta vs S&P 500 | 1.36 | -3.31 |
| Max drawdown (3Y) | -71.5% | -83.3% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CLNE | VXX |
|---|---|---|
| 2022 | -15.2% | -23.8% |
| 2023 | -26.3% | -72.5% |
| 2024 | -34.5% | -26.2% |
| 2025 | -16.3% | -42.2% |
| 2026 | -23.8% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CLNE and VXX good diversifiers for each other?
Yes. With a correlation of -0.30, CLNE and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CLNE and VXX?
The CLNE/VXX correlation stands at -0.30 on a 3-year window (1 year: 0.05, 5 years: -0.30), computed from weekly returns as of 2026-08-27.
Is VXX a good diversifier for CLNE?
Yes. With a correlation of -0.30, CLNE and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.30 mean?
On the −1 to +1 scale, -0.30 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/clne-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/clne-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CLNE correlations · VXX correlations
