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ACI vs TDG: Correlation

How closely do Albertsons Companies, Inc. (ACI) and TransDigm Group (TDG) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.

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

Correlation (3Y)
-0.18
negative
Correlation (1Y)
-0.30
last 12 months
Correlation (5Y)
0.03
long-run
Ann. covariance
-124.5
%² · weekly, annualized

How correlated are ACI and TDG?

On 3 years of weekly data the ACI/TDG correlation comes out at -0.18, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.30 versus -0.18 over 3 years. The 5-year figure is 0.03, and annualized covariance runs at -124.5 %².

By 3-year correlation, TDG places #10 of the 23 assets tracked against ACI. The last year tells two different stories: TDG led by 25.6 percentage points, -34.7% for ACI against -9.1% for TDG.

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.

ACI vs TDG: side by side

ACI (Albertsons Companies, Inc.)TDG (TransDigm Group)
1-year return-34.7%-9.1%
5-year return-36.3%+136.5%
Volatility (ann.)26.9%25.5%
Beta vs S&P 5000.080.91
Max drawdown (3Y)-49.1%-25.3%
Market cap$5.9B$65.6B
P/E (trailing)76.436.6
Dividend yield5.00%0.00%
Sector / categoryUS ListedIndustrials
Lower P/E: TDG 36.6 vs 76.4Higher yield: ACI 5.00% vs 0.00%Smaller drawdown: TDG -25.3% vs -49.1%Higher 5y return: TDG +136.5% vs -36.3%
-40%0%+14%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. ACI · TDG

Year-by-year returns

YearACITDG
2022-6.8%+1.8%
2023+13.4%+66.6%
2024-12.5%+32.3%
2025-10.0%+12.2%
2026-26.3%-10.8%

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

Are ACI and TDG good diversifiers for each other?

Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.

FAQ

What is the correlation between ACI and TDG?

As of 2026-08-27, the correlation of weekly returns between ACI and TDG is -0.18 over 3 years, -0.30 over 1 year and 0.03 over 5 years.

Is TDG a good diversifier for ACI?

Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.

What does a correlation of -0.18 mean?

A reading of -0.18 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/aci-vs-tdg.json

ACI vs TDG: 3-year weekly correlation -0.18ACI vs TDG-0.18

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Related comparisons

Hubs: ACI correlations · TDG correlations