CET vs CLIR: Correlation
Central Securities Corporation (CET) and ClearSign Technologies Corporation (CLIR) show a moderate relationship: their 3-year correlation of weekly returns is 0.41.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CET and CLIR?
On 3 years of weekly data the CET/CLIR correlation comes out at 0.41, moderate. Recent behaviour matches the longer record: 0.42 over 1 year against 0.41 over 3. The 5-year figure is 0.34, and annualized covariance runs at 460.8 %².
Within CET's tracked universe of 38 assets, CLIR comes in at #31 by 3-year correlation. Correlation aside, the last 12 months split them widely, with CET ahead by 38.9 points (+15.7% versus -23.2%). Risk is not evenly split, since CLIR carries 7.0 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.
CET vs CLIR: side by side
| CET (Central Securities Corporation) | CLIR (ClearSign Technologies Corporation) | |
|---|---|---|
| 1-year return | +15.7% | -23.2% |
| 5-year return | +73.3% | -85.3% |
| Volatility (ann.) | 12.8% | 89.0% |
| Beta vs S&P 500 | 0.78 | 2.06 |
| Max drawdown (3Y) | -15.4% | -78.5% |
| Market cap | – | – |
| P/E (trailing) | 7.3 | – |
| Dividend yield | 5.03% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CET | CLIR |
|---|---|---|
| 2022 | -19.7% | -60.9% |
| 2023 | +19.2% | +105.6% |
| 2024 | +26.8% | +29.7% |
| 2025 | +17.2% | -61.1% |
| 2026 | +8.3% | -19.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CET and CLIR good diversifiers for each other?
Reasonably. At 0.41, CET and CLIR keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CET and CLIR?
The CET/CLIR correlation stands at 0.41 on a 3-year window (1 year: 0.42, 5 years: 0.34), computed from weekly returns as of 2026-08-27.
Is CLIR a good diversifier for CET?
Reasonably. At 0.41, CET and CLIR keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.41 mean?
On the −1 to +1 scale, 0.41 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.
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Related comparisons
Hubs: CET correlations · CLIR correlations
