BCHT vs DEO: Correlation
Measured on weekly returns over the past three years, Birchtech Corp. (BCHT) and Diageo plc (DEO) carry a correlation of -0.23, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCHT and DEO?
Over the past 3 years, BCHT and DEO moved with a correlation of -0.23, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.16 lands near the 3-year figure. Over 5 years the correlation is -0.09, and the annualized covariance of weekly returns is -498.6 %².
DEO is close to the least connected end of BCHT's tracked universe, ranking #11 of 12. Their recent paths diverged sharply: over the last 12 months DEO outperformed by 40.1 percentage points (-54.9% for BCHT against -14.8% for DEO). One caveat on sizing: BCHT is 3.0 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BCHT vs DEO: side by side
| BCHT (Birchtech Corp.) | DEO (Diageo plc) | |
|---|---|---|
| 1-year return | -54.9% | -14.8% |
| 5-year return | -67.4% | -45.7% |
| Volatility (ann.) | 80.4% | 26.8% |
| Beta vs S&P 500 | 0.41 | 0.68 |
| Max drawdown (3Y) | -80.2% | -54.4% |
| Market cap | – | $51.2B |
| P/E (trailing) | – | 29.5 |
| Dividend yield | 0.00% | 0.53% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BCHT | DEO |
|---|---|---|
| 2022 | -55.9% | -17.4% |
| 2023 | +253.8% | -16.3% |
| 2024 | -44.6% | -10.1% |
| 2025 | +47.1% | -29.3% |
| 2026 | -66.9% | +7.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCHT and DEO good diversifiers for each other?
Yes. With a correlation of -0.23, BCHT and DEO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BCHT and DEO?
The BCHT/DEO correlation stands at -0.23 on a 3-year window (1 year: -0.16, 5 years: -0.09), computed from weekly returns as of 2026-08-27.
Is DEO a good diversifier for BCHT?
Yes. With a correlation of -0.23, BCHT and DEO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.23 mean?
On the −1 to +1 scale, -0.23 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/bcht-vs-deo.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bcht-vs-deo/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BCHT correlations · DEO correlations
