PBK vs RNXT: Correlation
How closely do PowerBank Corporation (PBK) and RenovoRx, Inc. (RNXT) trade together? Their weekly returns over three years give a correlation of -0.27, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PBK and RNXT?
Across a 3-year window, the weekly returns of PBK and RNXT correlate at -0.27, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.31 over 1 year against -0.27 over 3. Stretching to 5 years gives n/a, with an annualized covariance of -1905.8 %².
Out of 20 assets tracked against PBK, RNXT lands near the bottom at #19. The last year tells two different stories: RNXT led by 138.7 percentage points, -78.7% for PBK against +60.0% for RNXT.
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.
PBK vs RNXT: side by side
| PBK (PowerBank Corporation) | RNXT (RenovoRx, Inc.) | |
|---|---|---|
| 1-year return | -78.7% | +60.0% |
| 5-year return | n/a | -90.8% |
| Volatility (ann.) | 96.0% | 116.0% |
| Beta vs S&P 500 | 0.19 | 1.24 |
| Max drawdown (3Y) | -93.7% | -68.0% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PBK | RNXT |
|---|---|---|
| 2022 | – | -51.4% |
| 2023 | – | -2.6% |
| 2024 | – | -43.7% |
| 2025 | -11.7% | -34.9% |
| 2026 | -75.2% | +76.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PBK and RNXT good diversifiers for each other?
Yes. With a correlation of -0.27, PBK and RNXT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PBK and RNXT?
The PBK/RNXT correlation stands at -0.27 on a 3-year window (1 year: -0.31, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is RNXT a good diversifier for PBK?
Yes. With a correlation of -0.27, PBK and RNXT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
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/pbk-vs-rnxt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pbk-vs-rnxt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PBK correlations · RNXT correlations
