PCB vs PESI: Correlation
Measured on weekly returns over the past three years, PCB Bancorp (PCB) and Perma-Fix Environmental Services, Inc. (PESI) carry a correlation of 0.45, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PCB and PESI?
On 3 years of weekly data the PCB/PESI correlation comes out at 0.45, moderate. The link has loosened recently: the 1-year correlation (0.28) runs below the 3-year figure (0.45). The 5-year figure is 0.27, and annualized covariance runs at 697.1 %².
Within PCB's tracked universe of 20 assets, PESI comes in at #12 by 3-year correlation. The last year tells two different stories: PESI led by 32.3 percentage points, +29.1% for PCB against +61.4% for PESI. Risk is not evenly split, since PESI carries 2.3 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.
PCB vs PESI: side by side
| PCB (PCB Bancorp) | PESI (Perma-Fix Environmental Services, Inc.) | |
|---|---|---|
| 1-year return | +29.1% | +61.4% |
| 5-year return | +74.8% | +234.5% |
| Volatility (ann.) | 26.3% | 59.3% |
| Beta vs S&P 500 | 0.69 | 1.10 |
| Max drawdown (3Y) | -22.8% | -58.0% |
| Market cap | $0.4B | $0.4B |
| P/E (trailing) | 9.5 | – |
| Dividend yield | 3.04% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PCB | PESI |
|---|---|---|
| 2022 | -17.0% | -44.2% |
| 2023 | +8.9% | +122.7% |
| 2024 | +14.6% | +40.8% |
| 2025 | +11.2% | +13.7% |
| 2026 | +30.5% | +53.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PCB and PESI good diversifiers for each other?
Reasonably. At 0.45, PCB and PESI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PCB and PESI?
As of 2026-08-27, the correlation of weekly returns between PCB and PESI is 0.45 over 3 years, 0.28 over 1 year and 0.27 over 5 years.
Is PESI a good diversifier for PCB?
Reasonably. At 0.45, PCB and PESI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.45 mean?
A reading of 0.45 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/pcb-vs-pesi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/pcb-vs-pesi/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PCB correlations · PESI correlations
