PVLA vs TANH: Correlation
How closely do Palvella Therapeutics, Inc. (PVLA) and Tantech Holdings Ltd. - Class A (TANH) 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 PVLA and TANH?
On 3 years of weekly data the PVLA/TANH correlation comes out at -0.27, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.25 over 1 year against -0.27 over 3. The 5-year figure is -0.09, and annualized covariance runs at -2965.5 %².
Out of 16 assets tracked against PVLA, TANH lands near the bottom at #13. Their recent paths diverged sharply: over the last 12 months PVLA outperformed by 247.3 percentage points (+166.3% for PVLA against -81.0% for TANH).
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.
PVLA vs TANH: side by side
| PVLA (Palvella Therapeutics, Inc.) | TANH (Tantech Holdings Ltd. - Class A) | |
|---|---|---|
| 1-year return | +166.3% | -81.0% |
| 5-year return | -62.3% | -100.0% |
| Volatility (ann.) | 105.3% | 104.0% |
| Beta vs S&P 500 | 0.24 | 1.09 |
| Max drawdown (3Y) | -77.6% | -99.7% |
| Market cap | $2.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PVLA | TANH |
|---|---|---|
| 2022 | -72.5% | -98.1% |
| 2023 | -82.5% | -44.7% |
| 2024 | -17.6% | -82.3% |
| 2025 | +772.2% | -88.2% |
| 2026 | +43.6% | -62.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PVLA and TANH good diversifiers for each other?
Yes. With a correlation of -0.27, PVLA and TANH have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PVLA and TANH?
Using weekly returns as of 2026-08-27: -0.27 over 3 years, with -0.25 over the last year and -0.09 over 5 years.
Is TANH a good diversifier for PVLA?
Yes. With a correlation of -0.27, PVLA and TANH have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.27 mean?
A reading of -0.27 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: PVLA correlations · TANH correlations
