AMAT vs PDFS: Correlation
How closely do Applied Materials (AMAT) and PDF Solutions, Inc. (PDFS) trade together? Their weekly returns over three years give a correlation of 0.72, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMAT and PDFS?
Across a 3-year window, the weekly returns of AMAT and PDFS correlate at 0.72, strong. The relationship has been stable: the 1-year correlation (0.74) sits close to the 3-year figure. Stretching to 5 years gives 0.68, with an annualized covariance of 1492.7 %².
Among the 34 assets we track against AMAT, PDFS ranks #11 by 3-year correlation. Correlation aside, the last 12 months split them widely, with AMAT ahead by 61.4 points (+195.0% versus +133.6%).
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.
AMAT vs PDFS: side by side
| AMAT (Applied Materials) | PDFS (PDF Solutions, Inc.) | |
|---|---|---|
| 1-year return | +195.0% | +133.6% |
| 5-year return | +269.5% | +105.9% |
| Volatility (ann.) | 43.5% | 47.4% |
| Beta vs S&P 500 | 1.69 | 1.55 |
| Max drawdown (3Y) | -49.9% | -58.5% |
| Market cap | $382.8B | $1.9B |
| P/E (trailing) | 41.3 | 177.5 |
| Dividend yield | 0.41% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | AMAT | PDFS |
|---|---|---|
| 2022 | -37.5% | -10.3% |
| 2023 | +68.0% | +12.7% |
| 2024 | +1.1% | -15.7% |
| 2025 | +59.6% | +5.4% |
| 2026 | +88.4% | +61.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMAT and PDFS good diversifiers for each other?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AMAT and PDFS?
The AMAT/PDFS correlation stands at 0.72 on a 3-year window (1 year: 0.74, 5 years: 0.68), computed from weekly returns as of 2026-08-27.
Is PDFS a good diversifier for AMAT?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.72 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/amat-vs-pdfs.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: AMAT correlations · PDFS correlations
