CMCSA vs PPCB: Correlation
Comcast (CMCSA) and Propanc Biopharma, Inc. (PPCB) show a negative relationship: their 3-year correlation of weekly returns is -0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMCSA and PPCB?
Over the past 3 years, CMCSA and PPCB moved with a correlation of -0.25, which is negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.13) runs above the 3-year figure (-0.25). Over 5 years the correlation is -0.18, and the annualized covariance of weekly returns is -5781330.4 %².
PPCB is close to the least connected end of CMCSA's tracked universe, ranking #38 of 39. Their recent paths diverged sharply: over the last 12 months CMCSA outperformed by 84.4 percentage points (-12.6% for CMCSA against -97.0% for PPCB). One caveat on sizing: PPCB is 40428.3 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.
CMCSA vs PPCB: side by side
| CMCSA (Comcast) | PPCB (Propanc Biopharma, Inc.) | |
|---|---|---|
| 1-year return | -12.6% | -97.0% |
| 5-year return | -44.5% | -99.9% |
| Volatility (ann.) | 23.8% | 962193.8% |
| Beta vs S&P 500 | 0.48 | -3746.20 |
| Max drawdown (3Y) | -44.9% | -99.8% |
| Market cap | $93.7B | – |
| P/E (trailing) | 8.7 | 0.0 |
| Dividend yield | 4.85% | 0.00% |
| Sector / category | Communication Services | US Listed |
Year-by-year returns
| Year | CMCSA | PPCB |
|---|---|---|
| 2022 | -28.7% | -98.6% |
| 2023 | +29.1% | -98.0% |
| 2024 | -11.8% | -98.3% |
| 2025 | -17.3% | +134050.0% |
| 2026 | -2.2% | -83.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMCSA and PPCB good diversifiers for each other?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CMCSA and PPCB?
The CMCSA/PPCB correlation stands at -0.25 on a 3-year window (1 year: 0.13, 5 years: -0.18), computed from weekly returns as of 2026-08-27.
Is PPCB a good diversifier for CMCSA?
Yes: at -0.25, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.25 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/cmcsa-vs-ppcb.json
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Related comparisons
Hubs: CMCSA correlations · PPCB correlations
