AMKR vs KLAC: Correlation
Amkor Technology, Inc. (AMKR) and KLA Corporation (KLAC) show a strong relationship: their 3-year correlation of weekly returns is 0.72.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMKR and KLAC?
On 3 years of weekly data the AMKR/KLAC correlation comes out at 0.72, strong. The relationship has been stable: the 1-year correlation (0.75) sits close to the 3-year figure. The 5-year figure is 0.73, and annualized covariance runs at 1889.6 %².
Within AMKR's tracked universe of 17 assets, KLAC comes in at #4 by 3-year correlation. Twelve-month performance is nearly a tie, at +112.3% for AMKR and +107.9% for KLAC.
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 KLAC: side by side
| AMKR (Amkor Technology, Inc.) | KLAC (KLA Corporation) | |
|---|---|---|
| 1-year return | +112.3% | +107.9% |
| 5-year return | +98.2% | +463.9% |
| Volatility (ann.) | 57.4% | 45.6% |
| Beta vs S&P 500 | 2.24 | 1.84 |
| Max drawdown (3Y) | -65.9% | -43.6% |
| Market cap | $12.9B | $240.1B |
| P/E (trailing) | 21.6 | 50.2 |
| Dividend yield | 0.69% | 0.44% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | AMKR | KLAC |
|---|---|---|
| 2022 | -2.3% | -11.2% |
| 2023 | +40.3% | +56.0% |
| 2024 | -20.8% | +9.4% |
| 2025 | +55.9% | +94.5% |
| 2026 | +31.5% | +51.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMKR and KLAC good diversifiers for each other?
Only partially. A correlation of 0.72 means AMKR and KLAC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between AMKR and KLAC?
Using weekly returns as of 2026-08-27: 0.72 over 3 years, with 0.75 over the last year and 0.73 over 5 years.
Is KLAC a good diversifier for AMKR?
Only partially. A correlation of 0.72 means AMKR and KLAC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.72 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/amkr-vs-klac.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/amkr-vs-klac/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AMKR correlations · KLAC correlations
