AMGN vs PFE: Correlation
How closely do Amgen (AMGN) and Pfizer (PFE) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMGN and PFE?
Over the past 3 years, AMGN and PFE moved with a correlation of 0.47, which is moderate. Little has changed lately, as the 1-year reading of 0.48 lands near the 3-year figure. Over 5 years the correlation is 0.46, and the annualized covariance of weekly returns is 295.2 %².
Within AMGN's tracked universe of 31 assets, PFE comes in at #11 by 3-year correlation. The last year tells two different stories: AMGN led by 36.4 percentage points, +56.0% for AMGN against +19.6% for PFE. This link changes with the market regime, having swung between 0.16 and 0.71 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.
AMGN vs PFE: side by side
| AMGN (Amgen) | PFE (Pfizer) | |
|---|---|---|
| 1-year return | +56.0% | +19.6% |
| 5-year return | +127.8% | -21.9% |
| Volatility (ann.) | 26.3% | 23.8% |
| Beta vs S&P 500 | 0.34 | 0.40 |
| Max drawdown (3Y) | -22.7% | -34.8% |
| Market cap | $236.3B | $159.7B |
| P/E (trailing) | 27.3 | 37.4 |
| Dividend yield | 2.23% | 6.08% |
| Sector / category | Health Care | Health Care |
Year-by-year returns
| Year | AMGN | PFE |
|---|---|---|
| 2022 | +20.4% | -10.4% |
| 2023 | +13.5% | -41.3% |
| 2024 | -6.8% | -2.2% |
| 2025 | +29.7% | +0.6% |
| 2026 | +36.2% | +18.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMGN and PFE good diversifiers for each other?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between AMGN and PFE?
Using weekly returns as of 2026-08-27: 0.47 over 3 years, with 0.48 over the last year and 0.46 over 5 years.
Is PFE a good diversifier for AMGN?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.47 mean?
On the −1 to +1 scale, 0.47 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/amgn-vs-pfe.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/amgn-vs-pfe/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMGN correlations · PFE correlations
