FTCI vs VXZ: Correlation
Measured on weekly returns over the past three years, FTC Solar, Inc. (FTCI) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) carry a correlation of -0.24, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FTCI and VXZ?
Over the past 3 years, FTCI and VXZ moved with a correlation of -0.24, which is negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.39) than the 3-year average (-0.24). Over 5 years the correlation is -0.24, and the annualized covariance of weekly returns is -763.2 %².
VXZ is close to the least connected end of FTCI's tracked universe, ranking #11 of 12. Their recent paths diverged sharply: over the last 12 months VXZ outperformed by 46.3 percentage points (-62.4% for FTCI against -16.1% for VXZ). Note the risk asymmetry: FTCI runs 4.8 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
FTCI vs VXZ: side by side
| FTCI (FTC Solar, Inc.) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | -62.4% | -16.1% |
| 5-year return | -97.8% | -53.1% |
| Volatility (ann.) | 122.6% | 25.6% |
| Beta vs S&P 500 | 2.61 | -1.31 |
| Max drawdown (3Y) | -90.4% | -36.4% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FTCI | VXZ |
|---|---|---|
| 2022 | -64.6% | +0.5% |
| 2023 | -74.1% | -44.0% |
| 2024 | -20.5% | -12.7% |
| 2025 | +98.0% | +5.7% |
| 2026 | -77.7% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FTCI and VXZ good diversifiers for each other?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
FAQ
What is the correlation between FTCI and VXZ?
The FTCI/VXZ correlation stands at -0.24 on a 3-year window (1 year: -0.39, 5 years: -0.24), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for FTCI?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
What does a correlation of -0.24 mean?
A reading of -0.24 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
$ curl https://www.pairbook.io/api/v1/pairs/ftci-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ftci-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FTCI correlations · VXZ correlations
