SPWR vs XPL: Correlation
Measured on weekly returns over the past three years, SunPower Inc. (SPWR) and Solitario Resources Corp. (XPL) carry a correlation of 0.40, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPWR and XPL?
Over the past 3 years, SPWR and XPL moved with a correlation of 0.40, which is moderate. The link has loosened recently: the 1-year correlation (0.20) runs below the 3-year figure (0.40). Over 5 years the correlation is 0.38, and the annualized covariance of weekly returns is 2815.0 %².
Within SPWR's tracked universe of 13 assets, XPL comes in at #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with XPL ahead by 85.8 points (-80.4% versus +5.4%). Risk is not evenly split, since SPWR carries 3.0 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.
SPWR vs XPL: side by side
| SPWR (SunPower Inc.) | XPL (Solitario Resources Corp.) | |
|---|---|---|
| 1-year return | -80.4% | +5.4% |
| 5-year return | n/a | +45.0% |
| Volatility (ann.) | 146.1% | 48.2% |
| Beta vs S&P 500 | 1.97 | 1.10 |
| Max drawdown (3Y) | -92.9% | -42.1% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SPWR | XPL |
|---|---|---|
| 2022 | – | +24.0% |
| 2023 | – | -9.7% |
| 2024 | +11.5% | +5.4% |
| 2025 | -12.3% | +18.6% |
| 2026 | -81.1% | +16.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPWR and XPL good diversifiers for each other?
Reasonably. At 0.40, SPWR and XPL keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between SPWR and XPL?
As of 2026-08-27, the correlation of weekly returns between SPWR and XPL is 0.40 over 3 years, 0.20 over 1 year and 0.38 over 5 years.
Is XPL a good diversifier for SPWR?
Reasonably. At 0.40, SPWR and XPL keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.40 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/spwr-vs-xpl.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/spwr-vs-xpl/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SPWR correlations · XPL correlations
