PSNL vs SILO: Correlation
Measured on weekly returns over the past three years, Personalis, Inc. (PSNL) and Silo Pharma, Inc. (SILO) carry a correlation of 0.45, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PSNL and SILO?
Across a 3-year window, the weekly returns of PSNL and SILO correlate at 0.45, moderate. The link has loosened recently: the 1-year correlation (0.10) runs below the 3-year figure (0.45). Stretching to 5 years gives -0.03, with an annualized covariance of 7392.7 %².
Few assets follow PSNL as closely as SILO, which ranks #3 of 12 tracked partners. Correlation aside, the last 12 months split them widely, with PSNL ahead by 325.0 points (+251.5% versus -73.5%).
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.
PSNL vs SILO: side by side
| PSNL (Personalis, Inc.) | SILO (Silo Pharma, Inc.) | |
|---|---|---|
| 1-year return | +251.5% | -73.5% |
| 5-year return | -19.1% | -97.9% |
| Volatility (ann.) | 130.7% | 126.9% |
| Beta vs S&P 500 | 1.14 | 0.38 |
| Max drawdown (3Y) | -55.2% | -95.2% |
| Market cap | $1.8B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PSNL | SILO |
|---|---|---|
| 2022 | -86.1% | -53.0% |
| 2023 | +6.1% | -57.1% |
| 2024 | +175.2% | -38.2% |
| 2025 | +37.7% | -61.8% |
| 2026 | +111.1% | -50.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PSNL and SILO good diversifiers for each other?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PSNL and SILO?
As of 2026-08-27, the correlation of weekly returns between PSNL and SILO is 0.45 over 3 years, 0.10 over 1 year and -0.03 over 5 years.
Is SILO a good diversifier for PSNL?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.45 mean?
On the −1 to +1 scale, 0.45 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/psnl-vs-silo.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/psnl-vs-silo/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: PSNL correlations · SILO correlations
