AEIS vs UCTT: Correlation
Measured on weekly returns over the past three years, Advanced Energy Industries, Inc. (AEIS) and Ultra Clean Holdings, Inc. (UCTT) carry a correlation of 0.70, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEIS and UCTT?
Over the past 3 years, AEIS and UCTT moved with a correlation of 0.70, which is strong. Recent behaviour matches the longer record: 0.72 over 1 year against 0.70 over 3. Over 5 years the correlation is 0.73, and the annualized covariance of weekly returns is 1927.4 %².
Few assets follow AEIS as closely as UCTT, which ranks #3 of 32 tracked partners. The last year tells two different stories: UCTT led by 124.6 percentage points, +87.0% for AEIS against +211.6% for UCTT.
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.
AEIS vs UCTT: side by side
| AEIS (Advanced Energy Industries, Inc.) | UCTT (Ultra Clean Holdings, Inc.) | |
|---|---|---|
| 1-year return | +87.0% | +211.6% |
| 5-year return | +222.9% | +57.9% |
| Volatility (ann.) | 43.9% | 62.8% |
| Beta vs S&P 500 | 1.69 | 2.28 |
| Max drawdown (3Y) | -39.9% | -68.2% |
| Market cap | $11.5B | $3.4B |
| P/E (trailing) | 52.4 | – |
| Dividend yield | 0.14% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AEIS | UCTT |
|---|---|---|
| 2022 | -5.4% | -42.2% |
| 2023 | +27.5% | +3.0% |
| 2024 | +6.6% | +5.3% |
| 2025 | +81.6% | -29.5% |
| 2026 | +37.3% | +195.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEIS and UCTT good diversifiers for each other?
To a limited degree. At 0.70 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 AEIS and UCTT?
The AEIS/UCTT correlation stands at 0.70 on a 3-year window (1 year: 0.72, 5 years: 0.73), computed from weekly returns as of 2026-08-27.
Is UCTT a good diversifier for AEIS?
To a limited degree. At 0.70 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 0.70 mean?
On the −1 to +1 scale, 0.70 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/aeis-vs-uctt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/aeis-vs-uctt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AEIS correlations · UCTT correlations
