GURE vs PMCB: Correlation
How closely do Gulf Resources, Inc. (GURE) and PharmaCyte Biotech, Inc. (PMCB) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GURE and PMCB?
On 3 years of weekly data the GURE/PMCB correlation comes out at 0.47, moderate. The past 12 months show a tighter link (0.66) than the 3-year average (0.47). The 5-year figure is 0.43, and annualized covariance runs at 4004.0 %².
In GURE's tracked universe of 23 assets, PMCB sits right near the top at #2. Over the last 12 months PMCB came out ahead by 8.2 percentage points (-52.5% against -44.3%). One caveat on sizing: GURE is 2.2 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.
GURE vs PMCB: side by side
| GURE (Gulf Resources, Inc.) | PMCB (PharmaCyte Biotech, Inc.) | |
|---|---|---|
| 1-year return | -52.5% | -44.3% |
| 5-year return | -92.1% | -83.6% |
| Volatility (ann.) | 137.7% | 62.1% |
| Beta vs S&P 500 | -0.30 | 0.92 |
| Max drawdown (3Y) | -88.1% | -80.3% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GURE | PMCB |
|---|---|---|
| 2022 | -28.6% | +17.2% |
| 2023 | -46.6% | -26.3% |
| 2024 | -65.5% | -27.3% |
| 2025 | -35.1% | -53.9% |
| 2026 | -7.6% | -25.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GURE and PMCB good diversifiers for each other?
Reasonably. At 0.47, GURE and PMCB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between GURE and PMCB?
As of 2026-08-27, the correlation of weekly returns between GURE and PMCB is 0.47 over 3 years, 0.66 over 1 year and 0.43 over 5 years.
Is PMCB a good diversifier for GURE?
Reasonably. At 0.47, GURE and PMCB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.47 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.
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Related comparisons
Hubs: GURE correlations · PMCB correlations
