BRK.B vs CVS: Correlation
Berkshire Hathaway (BRK.B) and CVS Health (CVS) show a moderate relationship: their 3-year correlation of weekly returns is 0.34.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRK.B and CVS?
Across a 3-year window, the weekly returns of BRK.B and CVS correlate at 0.34, moderate. The relationship has been stable: the 1-year correlation (0.27) sits close to the 3-year figure. Stretching to 5 years gives 0.35, with an annualized covariance of 188.0 %².
By 3-year correlation, CVS places #20 of the 31 assets tracked against BRK.B. Their recent paths diverged sharply: over the last 12 months CVS outperformed by 31.7 percentage points (+1.6% for BRK.B against +33.3% for CVS). The link looks structural: the rolling one-year correlation barely moved, holding between 0.25 and 0.46. Risk is not evenly split, since CVS carries 2.2 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.
BRK.B vs CVS: side by side
| BRK.B (Berkshire Hathaway) | CVS (CVS Health) | |
|---|---|---|
| 1-year return | +1.6% | +33.3% |
| 5-year return | +76.3% | +29.6% |
| Volatility (ann.) | 15.9% | 34.4% |
| Beta vs S&P 500 | 0.43 | 0.40 |
| Max drawdown (3Y) | -14.9% | -44.0% |
| Market cap | $1,078.3B | $118.8B |
| P/E (trailing) | 12.7 | 24.8 |
| Dividend yield | 0.00% | 2.82% |
| Sector / category | Financials | Health Care |
Year-by-year returns
| Year | BRK.B | CVS |
|---|---|---|
| 2022 | +3.3% | -7.6% |
| 2023 | +15.5% | -12.5% |
| 2024 | +27.1% | -40.8% |
| 2025 | +10.9% | +84.3% |
| 2026 | +0.2% | +19.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRK.B and CVS good diversifiers for each other?
Reasonably. At 0.34, BRK.B and CVS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BRK.B and CVS?
Using weekly returns as of 2026-08-27: 0.34 over 3 years, with 0.27 over the last year and 0.35 over 5 years.
Is CVS a good diversifier for BRK.B?
Reasonably. At 0.34, BRK.B and CVS keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.34 mean?
A reading of 0.34 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/brk-b-vs-cvs.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/brk-b-vs-cvs/)
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Related comparisons
Hubs: BRK.B correlations · CVS correlations
