CI vs LIN: Correlation
Measured on weekly returns over the past three years, Cigna (CI) and Linde plc (LIN) carry a correlation of 0.40, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CI and LIN?
Over the past 3 years, CI and LIN moved with a correlation of 0.40, which is moderate. Little has changed lately, as the 1-year reading of 0.38 lands near the 3-year figure. Over 5 years the correlation is 0.35, and the annualized covariance of weekly returns is 175.1 %².
By 3-year correlation, LIN places #10 of the 30 assets tracked against CI. Over the last 12 months LIN came out ahead by 7.3 percentage points (-5.4% against +1.9%). The rolling one-year correlation moved between 0.13 and 0.55 over the past three years, a moderate range. One caveat on sizing: CI is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
CI vs LIN: side by side
| CI (Cigna) | LIN (Linde plc) | |
|---|---|---|
| 1-year return | -5.4% | +1.9% |
| 5-year return | +46.7% | +64.6% |
| Volatility (ann.) | 26.7% | 16.5% |
| Beta vs S&P 500 | 0.22 | 0.37 |
| Max drawdown (3Y) | -32.1% | -19.2% |
| Market cap | $73.4B | $223.7B |
| P/E (trailing) | 11.6 | 31.6 |
| Dividend yield | 2.19% | 1.26% |
| Sector / category | Health Care | Materials |
Year-by-year returns
| Year | CI | LIN |
|---|---|---|
| 2022 | +46.7% | -4.4% |
| 2023 | -8.0% | +27.7% |
| 2024 | -6.3% | +3.2% |
| 2025 | +1.7% | +3.2% |
| 2026 | +2.0% | +14.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CI and LIN good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CI and LIN?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.38 over the last year and 0.35 over 5 years.
Is LIN a good diversifier for CI?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.40 mean?
A reading of 0.40 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/ci-vs-lin.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ci-vs-lin/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CI correlations · LIN correlations
