FORM vs ONTO: Correlation
FormFactor, Inc. (FORM) and Onto Innovation Inc. (ONTO) show a strong relationship: their 3-year correlation of weekly returns is 0.71.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FORM and ONTO?
On 3 years of weekly data the FORM/ONTO correlation comes out at 0.71, strong. Little has changed lately, as the 1-year reading of 0.72 lands near the 3-year figure. The 5-year figure is 0.70, and annualized covariance runs at 2408.0 %².
Few assets follow FORM as closely as ONTO, which ranks #2 of 14 tracked partners. Correlation aside, the last 12 months split them widely, with FORM ahead by 105.6 points (+276.6% versus +171.0%).
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.
FORM vs ONTO: side by side
| FORM (FormFactor, Inc.) | ONTO (Onto Innovation Inc.) | |
|---|---|---|
| 1-year return | +276.6% | +171.0% |
| 5-year return | +178.6% | +288.7% |
| Volatility (ann.) | 58.1% | 58.7% |
| Beta vs S&P 500 | 2.08 | 2.32 |
| Max drawdown (3Y) | -62.7% | -62.8% |
| Market cap | $8.6B | $17.9B |
| P/E (trailing) | 74.5 | 110.0 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FORM | ONTO |
|---|---|---|
| 2022 | -51.4% | -32.7% |
| 2023 | +87.6% | +124.6% |
| 2024 | +5.5% | +9.0% |
| 2025 | +26.8% | -5.3% |
| 2026 | +97.6% | +85.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FORM and ONTO good diversifiers for each other?
To a limited degree. At 0.71 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 FORM and ONTO?
Using weekly returns as of 2026-08-27: 0.71 over 3 years, with 0.72 over the last year and 0.70 over 5 years.
Is ONTO a good diversifier for FORM?
To a limited degree. At 0.71 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 0.71 mean?
A reading of 0.71 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/form-vs-onto.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/form-vs-onto/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FORM correlations · ONTO correlations
