BILL vs PBK: Correlation
BILL Holdings, Inc. (BILL) and PowerBank Corporation (PBK) show a negative relationship: their 3-year correlation of weekly returns is -0.27.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BILL and PBK?
Across a 3-year window, the weekly returns of BILL and PBK correlate at -0.27, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.12) runs above the 3-year figure (-0.27). Stretching to 5 years gives n/a, with an annualized covariance of -1468.1 %².
PBK is close to the least connected end of BILL's tracked universe, ranking #13 of 13. Their recent paths diverged sharply: over the last 12 months BILL outperformed by 96.1 percentage points (+17.4% for BILL against -78.7% for PBK). One caveat on sizing: PBK is 1.7 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.
BILL vs PBK: side by side
| BILL (BILL Holdings, Inc.) | PBK (PowerBank Corporation) | |
|---|---|---|
| 1-year return | +17.4% | -78.7% |
| 5-year return | -82.7% | n/a |
| Volatility (ann.) | 57.0% | 96.0% |
| Beta vs S&P 500 | 1.26 | 0.19 |
| Max drawdown (3Y) | -73.0% | -93.7% |
| Market cap | $4.9B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BILL | PBK |
|---|---|---|
| 2022 | -56.3% | – |
| 2023 | -25.1% | – |
| 2024 | +3.8% | – |
| 2025 | -35.6% | -11.7% |
| 2026 | -10.4% | -75.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BILL and PBK good diversifiers for each other?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BILL and PBK?
As of 2026-08-27, the correlation of weekly returns between BILL and PBK is -0.27 over 3 years, -0.12 over 1 year and n/a over 5 years.
Is PBK a good diversifier for BILL?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.27 mean?
On the −1 to +1 scale, -0.27 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/bill-vs-pbk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bill-vs-pbk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BILL correlations · PBK correlations
