FTH vs NAII: Correlation
Measured on weekly returns over the past three years, Faeth Therapeutics, Inc. (FTH) and Natural Alternatives International, Inc. (NAII) carry a correlation of -0.23, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FTH and NAII?
On 3 years of weekly data the FTH/NAII correlation comes out at -0.23, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.39) runs below the 3-year figure (-0.23). The 5-year figure is -0.16, and annualized covariance runs at -2126.8 %².
Among the 19 assets we track against FTH, NAII sits near the bottom by co-movement, at rank #15. The last year tells two different stories: FTH led by 356.7 percentage points, +320.7% for FTH against -36.0% for NAII. Risk is not evenly split, since FTH carries 3.9 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.
FTH vs NAII: side by side
| FTH (Faeth Therapeutics, Inc.) | NAII (Natural Alternatives International, Inc.) | |
|---|---|---|
| 1-year return | +320.7% | -36.0% |
| 5-year return | -83.6% | -85.1% |
| Volatility (ann.) | 189.5% | 49.2% |
| Beta vs S&P 500 | 1.77 | 0.09 |
| Max drawdown (3Y) | -84.3% | -71.7% |
| Market cap | $0.9B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FTH | NAII |
|---|---|---|
| 2022 | -74.3% | -33.7% |
| 2023 | -53.6% | -22.2% |
| 2024 | -29.2% | -34.0% |
| 2025 | +8.9% | -16.9% |
| 2026 | +216.2% | -36.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FTH and NAII good diversifiers for each other?
Yes. With a correlation of -0.23, FTH and NAII have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between FTH and NAII?
Using weekly returns as of 2026-08-27: -0.23 over 3 years, with -0.39 over the last year and -0.16 over 5 years.
Is NAII a good diversifier for FTH?
Yes. With a correlation of -0.23, FTH and NAII have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.23 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/fth-vs-naii.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/fth-vs-naii/)
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Related comparisons
Hubs: FTH correlations · NAII correlations
