KLAC vs MU: Correlation
Measured on weekly returns over the past three years, KLA Corporation (KLAC) and Micron Technology (MU) carry a correlation of 0.59, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KLAC and MU?
Over the past 3 years, KLAC and MU moved with a correlation of 0.59, which is moderate. Little has changed lately, as the 1-year reading of 0.51 lands near the 3-year figure. Over 5 years the correlation is 0.59, and the annualized covariance of weekly returns is 1708.9 %².
By 3-year correlation, MU places #26 of the 40 assets tracked against KLAC. The last year tells two different stories: MU led by 587.8 percentage points, +107.9% for KLAC against +695.7% for MU. Across three years, the rolling one-year figure varied moderately, from 0.44 to 0.72.
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.
KLAC vs MU: side by side
| KLAC (KLA Corporation) | MU (Micron Technology) | |
|---|---|---|
| 1-year return | +107.9% | +695.7% |
| 5-year return | +463.9% | +1211.2% |
| Volatility (ann.) | 45.6% | 63.3% |
| Beta vs S&P 500 | 1.84 | 2.47 |
| Max drawdown (3Y) | -43.6% | -57.6% |
| Market cap | $240.1B | – |
| P/E (trailing) | 50.2 | 21.2 |
| Dividend yield | 0.44% | 0.06% |
| Sector / category | Information Technology | Information Technology |
Year-by-year returns
| Year | KLAC | MU |
|---|---|---|
| 2022 | -11.2% | -45.9% |
| 2023 | +56.0% | +71.9% |
| 2024 | +9.4% | -1.0% |
| 2025 | +94.5% | +240.2% |
| 2026 | +51.8% | +227.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KLAC and MU good diversifiers for each other?
To a limited degree. At 0.59 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 KLAC and MU?
Using weekly returns as of 2026-08-27: 0.59 over 3 years, with 0.51 over the last year and 0.59 over 5 years.
Is MU a good diversifier for KLAC?
To a limited degree. At 0.59 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 0.59 mean?
On the −1 to +1 scale, 0.59 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/klac-vs-mu.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/klac-vs-mu/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: KLAC correlations · MU correlations
