BRK.B vs CNO: Correlation
Berkshire Hathaway (BRK.B) and CNO Financial Group, Inc. (CNO) show a moderate relationship: their 3-year correlation of weekly returns is 0.59.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRK.B and CNO?
Over the past 3 years, BRK.B and CNO moved with a correlation of 0.59, which is moderate. Recent behaviour matches the longer record: 0.55 over 1 year against 0.59 over 3. Over 5 years the correlation is 0.65, and the annualized covariance of weekly returns is 210.4 %².
By 3-year correlation, CNO places #8 of the 31 assets tracked against BRK.B. Correlation aside, the last 12 months split them widely, with CNO ahead by 40.0 points (+1.6% versus +41.6%).
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.
BRK.B vs CNO: side by side
| BRK.B (Berkshire Hathaway) | CNO (CNO Financial Group, Inc.) | |
|---|---|---|
| 1-year return | +1.6% | +41.6% |
| 5-year return | +76.3% | +150.0% |
| Volatility (ann.) | 15.9% | 22.5% |
| Beta vs S&P 500 | 0.43 | 0.69 |
| Max drawdown (3Y) | -14.9% | -15.9% |
| Market cap | $1,078.3B | $5.1B |
| P/E (trailing) | 12.7 | 18.9 |
| Dividend yield | 0.00% | 1.26% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | BRK.B | CNO |
|---|---|---|
| 2022 | +3.3% | -1.6% |
| 2023 | +15.5% | +25.1% |
| 2024 | +27.1% | +36.1% |
| 2025 | +10.9% | +16.1% |
| 2026 | +0.2% | +30.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRK.B and CNO good diversifiers for each other?
To a limited degree. At 0.59 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 BRK.B and CNO?
The BRK.B/CNO correlation stands at 0.59 on a 3-year window (1 year: 0.55, 5 years: 0.65), computed from weekly returns as of 2026-08-27.
Is CNO a good diversifier for BRK.B?
To a limited degree. At 0.59 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 0.59 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/brk-b-vs-cno.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/brk-b-vs-cno/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BRK.B correlations · CNO correlations
