EQ vs PBK: Correlation
Measured on weekly returns over the past three years, Equillium, Inc. (EQ) and PowerBank Corporation (PBK) carry a correlation of 0.37, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EQ and PBK?
Over the past 3 years, EQ and PBK moved with a correlation of 0.37, which is moderate. Little has changed lately, as the 1-year reading of 0.32 lands near the 3-year figure. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 5097.7 %².
Within EQ's tracked universe of 13 assets, PBK comes in at #6 by 3-year correlation. The last year tells two different stories: EQ led by 107.0 percentage points, +28.3% for EQ against -78.7% for PBK. One caveat on sizing: EQ is 1.5 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.
EQ vs PBK: side by side
| EQ (Equillium, Inc.) | PBK (PowerBank Corporation) | |
|---|---|---|
| 1-year return | +28.3% | -78.7% |
| 5-year return | -60.0% | n/a |
| Volatility (ann.) | 147.8% | 96.0% |
| Beta vs S&P 500 | 0.03 | 0.19 |
| Max drawdown (3Y) | -90.3% | -93.7% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EQ | PBK |
|---|---|---|
| 2022 | -71.9% | – |
| 2023 | -32.1% | – |
| 2024 | +4.2% | – |
| 2025 | +106.7% | -11.7% |
| 2026 | +58.1% | -75.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EQ and PBK good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.37 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between EQ and PBK?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.32 over the last year and n/a over 5 years.
Is PBK a good diversifier for EQ?
Yes, to a useful degree: a correlation of 0.37 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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/eq-vs-pbk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/eq-vs-pbk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EQ correlations · PBK correlations
