TDG vs TRT: Correlation
TransDigm Group (TDG) and Trio-Tech International (TRT) show a negative relationship: their 3-year correlation of weekly returns is -0.19.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are TDG and TRT?
On 3 years of weekly data the TDG/TRT correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.34 versus -0.19 over 3 years. The 5-year figure is -0.07, and annualized covariance runs at -516.6 %².
Within TDG's tracked universe of 31 assets, TRT comes in at #26 by 3-year correlation. Correlation aside, the last 12 months split them widely, with TRT ahead by 304.6 points (-9.1% versus +295.5%). Risk is not evenly split, since TRT carries 4.2 times the volatility of the other side.
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.
TDG vs TRT: side by side
| TDG (TransDigm Group) | TRT (Trio-Tech International) | |
|---|---|---|
| 1-year return | -9.1% | +295.5% |
| 5-year return | +136.5% | +365.8% |
| Volatility (ann.) | 25.5% | 107.4% |
| Beta vs S&P 500 | 0.91 | 0.18 |
| Max drawdown (3Y) | -25.3% | -54.6% |
| Market cap | $65.6B | – |
| P/E (trailing) | 36.6 | 209.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | TDG | TRT |
|---|---|---|
| 2022 | +1.8% | -66.5% |
| 2023 | +66.6% | +12.7% |
| 2024 | +32.3% | +14.6% |
| 2025 | +12.2% | +127.9% |
| 2026 | -10.8% | +58.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are TDG and TRT good diversifiers for each other?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between TDG and TRT?
Using weekly returns as of 2026-08-27: -0.19 over 3 years, with -0.34 over the last year and -0.07 over 5 years.
Is TRT a good diversifier for TDG?
Yes: at -0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.19 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/tdg-vs-trt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/tdg-vs-trt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: TDG correlations · TRT correlations
