TATT vs TDG: Correlation
TAT Technologies Ltd. (TATT) and TransDigm Group (TDG) show a moderate relationship: their 3-year correlation of weekly returns is 0.34.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are TATT and TDG?
Across a 3-year window, the weekly returns of TATT and TDG correlate at 0.34, moderate. The past 12 months show a tighter link (0.58) than the 3-year average (0.34). Stretching to 5 years gives 0.32, with an annualized covariance of 455.5 %².
Among the 11 assets we track against TATT, TDG ranks #4 by 3-year correlation. Over the last 12 months TATT came out ahead by 9.8 percentage points (+0.7% against -9.1%). One caveat on sizing: TATT is 2.0 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.
TATT vs TDG: side by side
| TATT (TAT Technologies Ltd.) | TDG (TransDigm Group) | |
|---|---|---|
| 1-year return | +0.7% | -9.1% |
| 5-year return | +532.6% | +136.5% |
| Volatility (ann.) | 52.0% | 25.5% |
| Beta vs S&P 500 | 0.89 | 0.91 |
| Max drawdown (3Y) | -47.5% | -25.3% |
| Market cap | $0.5B | $65.6B |
| P/E (trailing) | 24.6 | 36.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | TATT | TDG |
|---|---|---|
| 2022 | -16.0% | +1.8% |
| 2023 | +91.5% | +66.6% |
| 2024 | +153.0% | +32.3% |
| 2025 | +73.9% | +12.2% |
| 2026 | -16.4% | -10.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are TATT and TDG good diversifiers for each other?
Reasonably. At 0.34, TATT and TDG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between TATT and TDG?
Using weekly returns as of 2026-08-27: 0.34 over 3 years, with 0.58 over the last year and 0.32 over 5 years.
Is TDG a good diversifier for TATT?
Reasonably. At 0.34, TATT and TDG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.34 mean?
On the −1 to +1 scale, 0.34 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/tatt-vs-tdg.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/tatt-vs-tdg/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: TATT correlations · TDG correlations
