IR vs MAR: Correlation
Measured on weekly returns over the past three years, Ingersoll Rand (IR) and Marriott International (MAR) carry a correlation of 0.64, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IR and MAR?
Across a 3-year window, the weekly returns of IR and MAR correlate at 0.64, strong. Lately the two have drifted apart, with the 1-year correlation at 0.43 versus 0.64 over 3 years. Stretching to 5 years gives 0.59, with an annualized covariance of 467.8 %².
By 3-year correlation, MAR places #21 of the 61 assets tracked against IR. Correlation aside, the last 12 months split them widely, with MAR ahead by 34.3 points (-2.0% versus +32.3%). The rolling one-year correlation moved between 0.45 and 0.79 over the past three years, a moderate range.
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.
IR vs MAR: side by side
| IR (Ingersoll Rand) | MAR (Marriott International) | |
|---|---|---|
| 1-year return | -2.0% | +32.3% |
| 5-year return | +49.2% | +173.2% |
| Volatility (ann.) | 29.8% | 24.6% |
| Beta vs S&P 500 | 1.17 | 0.97 |
| Max drawdown (3Y) | -36.6% | -30.5% |
| Market cap | $30.6B | $92.3B |
| P/E (trailing) | 32.6 | 36.7 |
| Dividend yield | 0.15% | 0.76% |
| Sector / category | Industrials | Consumer Discretionary |
Year-by-year returns
| Year | IR | MAR |
|---|---|---|
| 2022 | -15.4% | -9.3% |
| 2023 | +48.2% | +53.1% |
| 2024 | +17.1% | +24.9% |
| 2025 | -12.3% | +12.3% |
| 2026 | -0.2% | +14.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IR and MAR good diversifiers for each other?
Only partially. A correlation of 0.64 means IR and MAR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between IR and MAR?
As of 2026-08-27, the correlation of weekly returns between IR and MAR is 0.64 over 3 years, 0.43 over 1 year and 0.59 over 5 years.
Is MAR a good diversifier for IR?
Only partially. A correlation of 0.64 means IR and MAR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.64 mean?
On the −1 to +1 scale, 0.64 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/ir-vs-mar.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ir-vs-mar/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IR correlations · MAR correlations
