PPCB vs REBN: Correlation
How closely do Propanc Biopharma, Inc. (PPCB) and Reborn Coffee, Inc. (REBN) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PPCB and REBN?
Over the past 3 years, PPCB and REBN moved with a correlation of 0.42, which is moderate. The past 12 months show a weaker link (0.01) than the 3-year average (0.42). Over 5 years the correlation is 0.41, and the annualized covariance of weekly returns is 65696484.8 %².
By 3-year correlation, REBN places #6 of the 43 assets tracked against PPCB. Their recent paths diverged sharply: over the last 12 months REBN outperformed by 44.2 percentage points (-97.0% for PPCB against -52.8% for REBN). Risk is not evenly split, since PPCB carries 5928.5 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.
PPCB vs REBN: side by side
| PPCB (Propanc Biopharma, Inc.) | REBN (Reborn Coffee, Inc.) | |
|---|---|---|
| 1-year return | -97.0% | -52.8% |
| 5-year return | -99.9% | n/a |
| Volatility (ann.) | 962193.8% | 162.3% |
| Beta vs S&P 500 | -3746.20 | 1.65 |
| Max drawdown (3Y) | -99.8% | -87.3% |
| Market cap | – | – |
| P/E (trailing) | 0.0 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PPCB | REBN |
|---|---|---|
| 2022 | -98.6% | – |
| 2023 | -98.0% | -30.5% |
| 2024 | -98.3% | -63.6% |
| 2025 | +134050.0% | -10.2% |
| 2026 | -83.4% | -10.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PPCB and REBN good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between PPCB and REBN?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.01 over the last year and 0.41 over 5 years.
Is REBN a good diversifier for PPCB?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 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/ppcb-vs-rebn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ppcb-vs-rebn/)
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Related comparisons
Hubs: PPCB correlations · REBN correlations
