ENTG vs PDFS: Correlation
How closely do Entegris, Inc. (ENTG) and PDF Solutions, Inc. (PDFS) trade together? Their weekly returns over three years give a correlation of 0.68, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ENTG and PDFS?
Over the past 3 years, ENTG and PDFS moved with a correlation of 0.68, which is strong. Recent behaviour matches the longer record: 0.66 over 1 year against 0.68 over 3. Over 5 years the correlation is 0.62, and the annualized covariance of weekly returns is 1704.1 %².
Within ENTG's tracked universe of 23 assets, PDFS comes in at #11 by 3-year correlation. The last year tells two different stories: PDFS led by 60.0 percentage points, +73.6% for ENTG against +133.6% for PDFS.
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.
ENTG vs PDFS: side by side
| ENTG (Entegris, Inc.) | PDFS (PDF Solutions, Inc.) | |
|---|---|---|
| 1-year return | +73.6% | +133.6% |
| 5-year return | +22.7% | +105.9% |
| Volatility (ann.) | 53.0% | 47.4% |
| Beta vs S&P 500 | 2.17 | 1.55 |
| Max drawdown (3Y) | -56.9% | -58.5% |
| Market cap | $22.2B | $1.9B |
| P/E (trailing) | 71.6 | 177.5 |
| Dividend yield | 0.28% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ENTG | PDFS |
|---|---|---|
| 2022 | -52.5% | -10.3% |
| 2023 | +83.5% | +12.7% |
| 2024 | -17.1% | -15.7% |
| 2025 | -14.6% | +5.4% |
| 2026 | +72.9% | +61.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ENTG and PDFS good diversifiers for each other?
To a limited degree. At 0.68 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 ENTG and PDFS?
The ENTG/PDFS correlation stands at 0.68 on a 3-year window (1 year: 0.66, 5 years: 0.62), computed from weekly returns as of 2026-08-27.
Is PDFS a good diversifier for ENTG?
To a limited degree. At 0.68 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 0.68 mean?
On the −1 to +1 scale, 0.68 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/entg-vs-pdfs.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/entg-vs-pdfs/)
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Related comparisons
Hubs: ENTG correlations · PDFS correlations
