BDX vs TRT: Correlation
How closely do Becton Dickinson (BDX) and Trio-Tech International (TRT) trade together? Their weekly returns over three years give a correlation of -0.16, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BDX and TRT?
Across a 3-year window, the weekly returns of BDX and TRT correlate at -0.16, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.31 versus -0.16 over 3 years. Stretching to 5 years gives -0.09, with an annualized covariance of -413.3 %².
Within BDX's tracked universe of 28 assets, TRT comes in at #22 by 3-year correlation. The last year tells two different stories: TRT led by 270.0 percentage points, +25.5% for BDX against +295.5% for TRT. Risk is not evenly split, since TRT carries 4.5 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.
BDX vs TRT: side by side
| BDX (Becton Dickinson) | TRT (Trio-Tech International) | |
|---|---|---|
| 1-year return | +25.5% | +295.5% |
| 5-year return | +6.8% | +365.8% |
| Volatility (ann.) | 24.0% | 107.4% |
| Beta vs S&P 500 | 0.33 | 0.18 |
| Max drawdown (3Y) | -39.6% | -54.6% |
| Market cap | $51.2B | – |
| P/E (trailing) | 32.9 | 209.6 |
| Dividend yield | 2.20% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | BDX | TRT |
|---|---|---|
| 2022 | +5.1% | -66.5% |
| 2023 | -2.7% | +12.7% |
| 2024 | -5.4% | +14.6% |
| 2025 | -12.6% | +127.9% |
| 2026 | +25.0% | +58.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BDX and TRT good diversifiers for each other?
By historical standards, yes. A correlation of -0.16 means the two rarely move for the same reasons.
FAQ
What is the correlation between BDX and TRT?
The BDX/TRT correlation stands at -0.16 on a 3-year window (1 year: -0.31, 5 years: -0.09), computed from weekly returns as of 2026-08-27.
Is TRT a good diversifier for BDX?
By historical standards, yes. A correlation of -0.16 means the two rarely move for the same reasons.
What does a correlation of -0.16 mean?
A reading of -0.16 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
$ curl https://www.pairbook.io/api/v1/pairs/bdx-vs-trt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bdx-vs-trt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BDX correlations · TRT correlations
