TER vs UCTT: Correlation
Teradyne (TER) and Ultra Clean Holdings, Inc. (UCTT) show a moderate relationship: their 3-year correlation of weekly returns is 0.57.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are TER and UCTT?
Over the past 3 years, TER and UCTT moved with a correlation of 0.57, which is moderate. Recent behaviour matches the longer record: 0.54 over 1 year against 0.57 over 3. Over 5 years the correlation is 0.63, and the annualized covariance of weekly returns is 1884.6 %².
By 3-year correlation, UCTT places #15 of the 34 assets tracked against TER. On 12-month performance TER holds a 7.2-point edge, +218.8% against +211.6%.
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.
TER vs UCTT: side by side
| TER (Teradyne) | UCTT (Ultra Clean Holdings, Inc.) | |
|---|---|---|
| 1-year return | +218.8% | +211.6% |
| 5-year return | +207.9% | +57.9% |
| Volatility (ann.) | 52.5% | 62.8% |
| Beta vs S&P 500 | 1.70 | 2.28 |
| Max drawdown (3Y) | -58.2% | -68.2% |
| Market cap | $58.2B | $3.4B |
| P/E (trailing) | 50.0 | – |
| Dividend yield | 0.14% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | TER | UCTT |
|---|---|---|
| 2022 | -46.3% | -42.2% |
| 2023 | +24.8% | +3.0% |
| 2024 | +16.5% | +5.3% |
| 2025 | +54.4% | -29.5% |
| 2026 | +92.4% | +195.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are TER and UCTT good diversifiers for each other?
To a limited degree. At 0.57 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between TER and UCTT?
As of 2026-08-27, the correlation of weekly returns between TER and UCTT is 0.57 over 3 years, 0.54 over 1 year and 0.63 over 5 years.
Is UCTT a good diversifier for TER?
To a limited degree. At 0.57 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.57 mean?
A reading of 0.57 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/ter-vs-uctt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ter-vs-uctt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: TER correlations · UCTT correlations
