AFL vs PACB: Correlation
Aflac (AFL) and Pacific Biosciences of California, Inc. (PACB) show a negative relationship: their 3-year correlation of weekly returns is -0.20.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AFL and PACB?
Over the past 3 years, AFL and PACB moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.34 versus -0.20 over 3 years. Over 5 years the correlation is 0.07, and the annualized covariance of weekly returns is -353.9 %².
Within AFL's tracked universe of 32 assets, PACB comes in at #27 by 3-year correlation. The trailing year gives PACB the advantage: +10.8% versus +16.5%, a 5.7-point spread. Risk is not evenly split, since PACB carries 4.9 times the volatility of the other side.
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.
AFL vs PACB: side by side
| AFL (Aflac) | PACB (Pacific Biosciences of California, Inc.) | |
|---|---|---|
| 1-year return | +10.8% | +16.5% |
| 5-year return | +131.3% | -94.9% |
| Volatility (ann.) | 19.2% | 93.3% |
| Beta vs S&P 500 | 0.36 | 1.21 |
| Max drawdown (3Y) | -13.6% | -92.2% |
| Market cap | $58.4B | $0.5B |
| P/E (trailing) | 12.6 | – |
| Dividend yield | 2.03% | 0.00% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | AFL | PACB |
|---|---|---|
| 2022 | +26.4% | -60.0% |
| 2023 | +17.4% | +19.9% |
| 2024 | +28.1% | -81.3% |
| 2025 | +8.9% | +2.2% |
| 2026 | +7.4% | -17.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AFL and PACB good diversifiers for each other?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between AFL and PACB?
The AFL/PACB correlation stands at -0.20 on a 3-year window (1 year: -0.34, 5 years: 0.07), computed from weekly returns as of 2026-08-27.
Is PACB a good diversifier for AFL?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 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/afl-vs-pacb.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/afl-vs-pacb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AFL correlations · PACB correlations
