CLIR vs EOI: Correlation
Measured on weekly returns over the past three years, ClearSign Technologies Corporation (CLIR) and Eaton Vance Enhance Equity Income Fund Eaton Vance Enhanced (EOI) 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 CLIR and EOI?
On 3 years of weekly data the CLIR/EOI correlation comes out at 0.40, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.26 versus 0.40 over 3 years. The 5-year figure is 0.32, and annualized covariance runs at 605.9 %².
In CLIR's tracked universe of 10 assets, EOI sits right near the top at #3. Correlation aside, the last 12 months split them widely, with EOI ahead by 25.4 points (-23.2% versus +2.2%). Risk is not evenly split, since CLIR carries 5.2 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.
CLIR vs EOI: side by side
| CLIR (ClearSign Technologies Corporation) | EOI (Eaton Vance Enhance Equity Income Fund Eaton Vance Enhanced) | |
|---|---|---|
| 1-year return | -23.2% | +2.2% |
| 5-year return | -85.3% | +55.4% |
| Volatility (ann.) | 89.0% | 17.0% |
| Beta vs S&P 500 | 2.06 | 0.96 |
| Max drawdown (3Y) | -78.5% | -23.2% |
| Market cap | – | $0.8B |
| P/E (trailing) | – | 8.5 |
| Dividend yield | 0.00% | 8.03% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CLIR | EOI |
|---|---|---|
| 2022 | -60.9% | -19.7% |
| 2023 | +105.6% | +20.7% |
| 2024 | +29.7% | +35.8% |
| 2025 | -61.1% | +7.2% |
| 2026 | -19.1% | +3.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CLIR and EOI good diversifiers for each other?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CLIR and EOI?
As of 2026-08-27, the correlation of weekly returns between CLIR and EOI is 0.40 over 3 years, 0.26 over 1 year and 0.32 over 5 years.
Is EOI a good diversifier for CLIR?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.40 mean?
A reading of 0.40 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/clir-vs-eoi.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/clir-vs-eoi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CLIR correlations · EOI correlations
