EFOI vs ILLR: Correlation
How closely do Energy Focus, Inc. (EFOI) and Triller Group Inc. (ILLR) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EFOI and ILLR?
Across a 3-year window, the weekly returns of EFOI and ILLR correlate at 0.53, moderate. The link has tightened recently: the 1-year correlation (0.65) runs above the 3-year figure (0.53). Stretching to 5 years gives 0.45, with an annualized covariance of 38590.9 %².
Among the 17 assets we track against EFOI, ILLR ranks #4 by 3-year correlation. The last year tells two different stories: EFOI led by 92.8 percentage points, +13.2% for EFOI against -79.6% for ILLR. Risk is not evenly split, since ILLR carries 2.9 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.
EFOI vs ILLR: side by side
| EFOI (Energy Focus, Inc.) | ILLR (Triller Group Inc.) | |
|---|---|---|
| 1-year return | +13.2% | -79.6% |
| 5-year return | -87.5% | -99.6% |
| Volatility (ann.) | 158.7% | 462.5% |
| Beta vs S&P 500 | 1.96 | 2.45 |
| Max drawdown (3Y) | -58.2% | -99.7% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EFOI | ILLR |
|---|---|---|
| 2022 | -92.5% | -86.0% |
| 2023 | -32.6% | -68.4% |
| 2024 | -21.2% | +137.0% |
| 2025 | +94.1% | -98.7% |
| 2026 | +25.5% | +207.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EFOI and ILLR good diversifiers for each other?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between EFOI and ILLR?
Using weekly returns as of 2026-08-27: 0.53 over 3 years, with 0.65 over the last year and 0.45 over 5 years.
Is ILLR a good diversifier for EFOI?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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/efoi-vs-illr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/efoi-vs-illr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: EFOI correlations · ILLR correlations
