A vs PFE: Correlation
Measured on weekly returns over the past three years, Agilent Technologies (A) and Pfizer (PFE) carry a correlation of 0.41, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are A and PFE?
Across a 3-year window, the weekly returns of A and PFE correlate at 0.41, moderate. Little has changed lately, as the 1-year reading of 0.48 lands near the 3-year figure. Stretching to 5 years gives 0.39, with an annualized covariance of 303.4 %².
Within A's tracked universe of 33 assets, PFE comes in at #19 by 3-year correlation. The trailing year gives A the advantage: +33.9% versus +19.6%, a 14.3-point spread. This link changes with the market regime, having swung between 0.08 and 0.69 on a rolling one-year basis.
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.
A vs PFE: side by side
| A (Agilent Technologies) | PFE (Pfizer) | |
|---|---|---|
| 1-year return | +33.9% | +19.6% |
| 5-year return | -7.5% | -21.9% |
| Volatility (ann.) | 31.0% | 23.8% |
| Beta vs S&P 500 | 0.98 | 0.40 |
| Max drawdown (3Y) | -35.3% | -34.8% |
| Market cap | $44.5B | $159.7B |
| P/E (trailing) | 30.6 | 37.4 |
| Dividend yield | 0.00% | 6.08% |
| Sector / category | Health Care | Health Care |
Year-by-year returns
| Year | A | PFE |
|---|---|---|
| 2022 | -5.5% | -10.4% |
| 2023 | -6.4% | -41.3% |
| 2024 | -2.7% | -2.2% |
| 2025 | +1.9% | +0.6% |
| 2026 | +16.6% | +18.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are A and PFE good diversifiers for each other?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between A and PFE?
The A/PFE correlation stands at 0.41 on a 3-year window (1 year: 0.48, 5 years: 0.39), computed from weekly returns as of 2026-08-27.
Is PFE a good diversifier for A?
A fair diversifier. At 0.41, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.41 mean?
On the −1 to +1 scale, 0.41 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/a-vs-pfe.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/a-vs-pfe/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: A correlations · PFE correlations
