FSI vs PTHS: Correlation
Flexible Solutions International Inc. (FSI) and Pelthos Therapeutics Inc. (PTHS) show a moderate relationship: their 3-year correlation of weekly returns is 0.36.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FSI and PTHS?
Over the past 3 years, FSI and PTHS moved with a correlation of 0.36, which is moderate. The link has loosened recently: the 1-year correlation (0.22) runs below the 3-year figure (0.36). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 3444.1 %².
By 3-year correlation, PTHS places #4 of the 10 assets tracked against FSI. Their recent paths diverged sharply: over the last 12 months PTHS outperformed by 43.8 percentage points (-38.4% for FSI against +5.4% for PTHS). Note the risk asymmetry: PTHS runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
FSI vs PTHS: side by side
| FSI (Flexible Solutions International Inc.) | PTHS (Pelthos Therapeutics Inc.) | |
|---|---|---|
| 1-year return | -38.4% | +5.4% |
| 5-year return | +71.9% | n/a |
| Volatility (ann.) | 73.1% | 125.0% |
| Beta vs S&P 500 | 1.39 | 1.67 |
| Max drawdown (3Y) | -56.4% | -88.7% |
| Market cap | $0.1B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FSI | PTHS |
|---|---|---|
| 2022 | -20.3% | – |
| 2023 | -37.3% | – |
| 2024 | +89.0% | – |
| 2025 | +90.6% | +383.6% |
| 2026 | -11.8% | -19.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FSI and PTHS good diversifiers for each other?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between FSI and PTHS?
As of 2026-08-27, the correlation of weekly returns between FSI and PTHS is 0.36 over 3 years, 0.22 over 1 year and n/a over 5 years.
Is PTHS a good diversifier for FSI?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.36 mean?
On the −1 to +1 scale, 0.36 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/fsi-vs-pths.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fsi-vs-pths/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FSI correlations · PTHS correlations
