AMKR vs COHU: Correlation
How closely do Amkor Technology, Inc. (AMKR) and Cohu, Inc. (COHU) trade together? Their weekly returns over three years give a correlation of 0.73, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMKR and COHU?
On 3 years of weekly data the AMKR/COHU correlation comes out at 0.73, strong. Recent behaviour matches the longer record: 0.80 over 1 year against 0.73 over 3. The 5-year figure is 0.74, and annualized covariance runs at 1871.2 %².
Few assets follow AMKR as closely as COHU, which ranks #2 of 17 tracked partners. Their recent paths diverged sharply: over the last 12 months COHU outperformed by 42.5 percentage points (+112.3% for AMKR against +154.8% for COHU).
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.
AMKR vs COHU: side by side
| AMKR (Amkor Technology, Inc.) | COHU (Cohu, Inc.) | |
|---|---|---|
| 1-year return | +112.3% | +154.8% |
| 5-year return | +98.2% | +41.3% |
| Volatility (ann.) | 57.4% | 44.8% |
| Beta vs S&P 500 | 2.24 | 1.74 |
| Max drawdown (3Y) | -65.9% | -64.7% |
| Market cap | $12.9B | $2.4B |
| P/E (trailing) | 21.6 | – |
| Dividend yield | 0.69% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMKR | COHU |
|---|---|---|
| 2022 | -2.3% | -15.9% |
| 2023 | +40.3% | +10.4% |
| 2024 | -20.8% | -24.6% |
| 2025 | +55.9% | -12.8% |
| 2026 | +31.5% | +122.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMKR and COHU good diversifiers for each other?
To a limited degree. At 0.73 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 AMKR and COHU?
As of 2026-08-27, the correlation of weekly returns between AMKR and COHU is 0.73 over 3 years, 0.80 over 1 year and 0.74 over 5 years.
Is COHU a good diversifier for AMKR?
To a limited degree. At 0.73 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 0.73 mean?
On the −1 to +1 scale, 0.73 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/amkr-vs-cohu.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/amkr-vs-cohu/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMKR correlations · COHU correlations
