AJG vs ROP: Correlation
How closely do Arthur J. Gallagher & Co. (AJG) and Roper Technologies (ROP) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AJG and ROP?
Over the past 3 years, AJG and ROP moved with a correlation of 0.58, which is moderate. The past 12 months show a tighter link (0.68) than the 3-year average (0.58). Over 5 years the correlation is 0.61, and the annualized covariance of weekly returns is 295.2 %².
Within AJG's tracked universe of 32 assets, ROP comes in at #6 by 3-year correlation. On 12-month performance AJG holds a 7.4-point edge, -11.9% against -19.3%. The relationship is regime-dependent: the rolling one-year correlation swung between 0.06 and 0.71 over the past three years, so this pair behaves very differently depending on the market environment.
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.
AJG vs ROP: side by side
| AJG (Arthur J. Gallagher & Co.) | ROP (Roper Technologies) | |
|---|---|---|
| 1-year return | -11.9% | -19.3% |
| 5-year return | +91.1% | -9.6% |
| Volatility (ann.) | 25.0% | 20.5% |
| Beta vs S&P 500 | 0.36 | 0.55 |
| Max drawdown (3Y) | -44.4% | -46.5% |
| Market cap | $66.7B | $41.8B |
| P/E (trailing) | 43.1 | 17.6 |
| Dividend yield | 1.02% | 0.86% |
| Sector / category | Financials | Information Technology |
Year-by-year returns
| Year | AJG | ROP |
|---|---|---|
| 2022 | +12.4% | -11.6% |
| 2023 | +20.5% | +26.9% |
| 2024 | +27.3% | -4.1% |
| 2025 | -8.0% | -13.8% |
| 2026 | +1.2% | -4.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AJG and ROP good diversifiers for each other?
To a limited degree. At 0.58 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 AJG and ROP?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.68 over the last year and 0.61 over 5 years.
Is ROP a good diversifier for AJG?
To a limited degree. At 0.58 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 0.58 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/ajg-vs-rop.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ajg-vs-rop/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AJG correlations · ROP correlations
