PSIG vs TDY: Correlation
PS International Group Ltd. (PSIG) and Teledyne Technologies (TDY) show a negative relationship: their 3-year correlation of weekly returns is -0.14.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PSIG and TDY?
Over the past 3 years, PSIG and TDY moved with a correlation of -0.14, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.24) sits close to the 3-year figure. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -520.2 %².
By 3-year correlation, TDY places #10 of the 55 assets tracked against PSIG. The last year tells two different stories: TDY led by 69.6 percentage points, -53.9% for PSIG against +15.7% for TDY. One caveat on sizing: PSIG is 7.1 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.
PSIG vs TDY: side by side
| PSIG (PS International Group Ltd.) | TDY (Teledyne Technologies) | |
|---|---|---|
| 1-year return | -53.9% | +15.7% |
| 5-year return | n/a | +36.5% |
| Volatility (ann.) | 157.0% | 22.0% |
| Beta vs S&P 500 | 0.97 | 0.76 |
| Max drawdown (3Y) | -96.0% | -18.8% |
| Market cap | – | $29.0B |
| P/E (trailing) | – | 30.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | PSIG | TDY |
|---|---|---|
| 2022 | – | -8.5% |
| 2023 | – | +11.6% |
| 2024 | – | +4.0% |
| 2025 | +8.3% | +10.0% |
| 2026 | -62.9% | +22.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PSIG and TDY good diversifiers for each other?
Yes. With a correlation of -0.14, PSIG and TDY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PSIG and TDY?
As of 2026-08-27, the correlation of weekly returns between PSIG and TDY is -0.14 over 3 years, -0.24 over 1 year and n/a over 5 years.
Is TDY a good diversifier for PSIG?
Yes. With a correlation of -0.14, PSIG and TDY have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.14 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/psig-vs-tdy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/psig-vs-tdy/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PSIG correlations · TDY correlations
