BCHT vs OPRT: Correlation
Birchtech Corp. (BCHT) and Oportun Financial Corporation (OPRT) show a negative relationship: their 3-year correlation of weekly returns is -0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BCHT and OPRT?
Over the past 3 years, BCHT and OPRT moved with a correlation of -0.21, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.04) than the 3-year average (-0.21). Over 5 years the correlation is -0.06, and the annualized covariance of weekly returns is -1410.9 %².
OPRT is close to the least connected end of BCHT's tracked universe, ranking #9 of 12. The last year tells two different stories: OPRT led by 69.3 percentage points, -54.9% for BCHT against +14.4% for OPRT.
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 OPRT: side by side
| BCHT (Birchtech Corp.) | OPRT (Oportun Financial Corporation) | |
|---|---|---|
| 1-year return | -54.9% | +14.4% |
| 5-year return | -67.4% | -69.9% |
| Volatility (ann.) | 80.4% | 83.4% |
| Beta vs S&P 500 | 0.41 | 1.77 |
| Max drawdown (3Y) | -80.2% | -72.0% |
| Market cap | – | $0.3B |
| P/E (trailing) | – | 18.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BCHT | OPRT |
|---|---|---|
| 2022 | -55.9% | -72.8% |
| 2023 | +253.8% | -29.0% |
| 2024 | -44.6% | -0.8% |
| 2025 | +47.1% | +36.3% |
| 2026 | -66.9% | +41.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BCHT and OPRT good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BCHT and OPRT?
As of 2026-08-27, the correlation of weekly returns between BCHT and OPRT is -0.21 over 3 years, 0.04 over 1 year and -0.06 over 5 years.
Is OPRT a good diversifier for BCHT?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 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/bcht-vs-oprt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bcht-vs-oprt/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BCHT correlations · OPRT correlations
