SON vs TRT: Correlation
How closely do Sonoco Products Company (SON) and Trio-Tech International (TRT) trade together? Their weekly returns over three years give a correlation of -0.44, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SON and TRT?
Across a 3-year window, the weekly returns of SON and TRT correlate at -0.44, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.65 versus -0.44 over 3 years. Stretching to 5 years gives -0.27, with an annualized covariance of -1213.7 %².
Out of 15 assets tracked against SON, TRT lands near the bottom at #15. Their recent paths diverged sharply: over the last 12 months TRT outperformed by 269.0 percentage points (+26.5% for SON against +295.5% for TRT). 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.
SON vs TRT: side by side
| SON (Sonoco Products Company) | TRT (Trio-Tech International) | |
|---|---|---|
| 1-year return | +26.5% | +295.5% |
| 5-year return | +4.8% | +365.8% |
| Volatility (ann.) | 25.7% | 107.4% |
| Beta vs S&P 500 | 0.62 | 0.18 |
| Max drawdown (3Y) | -32.5% | -54.6% |
| Market cap | $5.6B | – |
| P/E (trailing) | 8.9 | 209.6 |
| Dividend yield | 3.70% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SON | TRT |
|---|---|---|
| 2022 | +8.3% | -66.5% |
| 2023 | -4.7% | +12.7% |
| 2024 | -9.1% | +14.6% |
| 2025 | -6.3% | +127.9% |
| 2026 | +33.8% | +58.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SON and TRT good diversifiers for each other?
Yes. With a correlation of -0.44, SON and TRT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between SON and TRT?
As of 2026-08-27, the correlation of weekly returns between SON and TRT is -0.44 over 3 years, -0.65 over 1 year and -0.27 over 5 years.
Is TRT a good diversifier for SON?
Yes. With a correlation of -0.44, SON and TRT have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.44 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/son-vs-trt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/son-vs-trt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SON correlations · TRT correlations
