PSNL vs SERV: Correlation
How closely do Personalis, Inc. (PSNL) and Serve Robotics Inc. (SERV) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PSNL and SERV?
Over the past 3 years, PSNL and SERV moved with a correlation of 0.53, which is moderate. The link has loosened recently: the 1-year correlation (0.24) runs below the 3-year figure (0.53). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 13241.1 %².
Few assets follow PSNL as closely as SERV, which ranks #2 of 12 tracked partners. Their recent paths diverged sharply: over the last 12 months PSNL outperformed by 309.5 percentage points (+251.5% for PSNL against -58.0% for SERV).
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 SERV: side by side
| PSNL (Personalis, Inc.) | SERV (Serve Robotics Inc.) | |
|---|---|---|
| 1-year return | +251.5% | -58.0% |
| 5-year return | -19.1% | n/a |
| Volatility (ann.) | 130.7% | 186.9% |
| Beta vs S&P 500 | 1.14 | 1.18 |
| Max drawdown (3Y) | -55.2% | -92.4% |
| Market cap | $1.8B | $0.4B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PSNL | SERV |
|---|---|---|
| 2022 | -86.1% | – |
| 2023 | +6.1% | – |
| 2024 | +175.2% | – |
| 2025 | +37.7% | -23.1% |
| 2026 | +111.1% | -53.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PSNL and SERV good diversifiers for each other?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between PSNL and SERV?
The PSNL/SERV correlation stands at 0.53 on a 3-year window (1 year: 0.24, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is SERV a good diversifier for PSNL?
To a limited degree. At 0.53 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.53 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: PSNL correlations · SERV correlations
