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IR vs ITW: Correlation

How closely do Ingersoll Rand (IR) and Illinois Tool Works (ITW) trade together? Their weekly returns over three years give a correlation of 0.71, which is strong.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.71
strong
Correlation (1Y)
0.85
last 12 months
Correlation (5Y)
0.70
long-run
Ann. covariance
401.6
%² · weekly, annualized

How correlated are IR and ITW?

Across a 3-year window, the weekly returns of IR and ITW correlate at 0.71, strong. The link has tightened recently: the 1-year correlation (0.85) runs above the 3-year figure (0.71). Stretching to 5 years gives 0.70, with an annualized covariance of 401.6 %².

Within IR's tracked universe of 61 assets, ITW comes in at #7 by 3-year correlation. Over the last 12 months ITW came out ahead by 10.2 percentage points (-2.0% against +8.2%). This link changes with the market regime, having swung between 0.30 and 0.86 on a rolling one-year basis. One caveat on sizing: IR is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.

+1.0+0.50-0.5-1.020232026-08-27
Rolling one-year correlation of weekly returns over the past three years.
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 ITW: side by side

IR (Ingersoll Rand)ITW (Illinois Tool Works)
1-year return-2.0%+8.2%
5-year return+49.2%+36.1%
Volatility (ann.)29.8%19.0%
Beta vs S&P 5001.170.64
Max drawdown (3Y)-36.6%-20.6%
Market cap$30.6B$80.2B
P/E (trailing)32.625.8
Dividend yield0.15%2.26%
Sector / categoryIndustrialsIndustrials
Lower P/E: ITW 25.8 vs 32.6Higher yield: ITW 2.26% vs 0.15%Smaller drawdown: ITW -20.6% vs -36.6%Higher 5y return: IR +49.2% vs +36.1%
-13%0%+22%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. IR · ITW

Year-by-year returns

YearIRITW
2022-15.4%-8.5%
2023+48.2%+21.6%
2024+17.1%-1.0%
2025-12.3%-0.4%
2026-0.2%+15.8%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are IR and ITW good diversifiers for each other?

To a limited degree. At 0.71 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 IR and ITW?

As of 2026-08-27, the correlation of weekly returns between IR and ITW is 0.71 over 3 years, 0.85 over 1 year and 0.70 over 5 years.

Is ITW a good diversifier for IR?

To a limited degree. At 0.71 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 0.71 mean?

A reading of 0.71 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/ir-vs-itw.json

IR vs ITW: 3-year weekly correlation 0.71IR vs ITW0.71

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Related comparisons

Hubs: IR correlations · ITW correlations