ACMR vs LRCX: Correlation
ACM Research, Inc. (ACMR) and Lam Research (LRCX) show a moderate relationship: their 3-year correlation of weekly returns is 0.59.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACMR and LRCX?
On 3 years of weekly data the ACMR/LRCX correlation comes out at 0.59, moderate. The past 12 months show a tighter link (0.74) than the 3-year average (0.59). The 5-year figure is 0.55, and annualized covariance runs at 2217.9 %².
Few assets follow ACMR as closely as LRCX, which ranks #1 of 13 tracked partners. The last year tells two different stories: LRCX led by 27.4 percentage points, +181.6% for ACMR against +209.0% for LRCX. One caveat on sizing: ACMR is 1.7 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
ACMR vs LRCX: side by side
| ACMR (ACM Research, Inc.) | LRCX (Lam Research) | |
|---|---|---|
| 1-year return | +181.6% | +209.0% |
| 5-year return | +173.8% | +452.0% |
| Volatility (ann.) | 80.8% | 46.7% |
| Beta vs S&P 500 | 2.07 | 2.03 |
| Max drawdown (3Y) | -58.4% | -47.1% |
| Market cap | $5.6B | $398.6B |
| P/E (trailing) | 37.3 | 54.4 |
| Dividend yield | 0.00% | 0.33% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | ACMR | LRCX |
|---|---|---|
| 2022 | -72.9% | -40.7% |
| 2023 | +153.4% | +88.6% |
| 2024 | -22.7% | -6.8% |
| 2025 | +161.3% | +139.2% |
| 2026 | +104.0% | +86.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACMR and LRCX 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 ACMR and LRCX?
The ACMR/LRCX correlation stands at 0.59 on a 3-year window (1 year: 0.74, 5 years: 0.55), computed from weekly returns as of 2026-08-27.
Is LRCX a good diversifier for ACMR?
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/acmr-vs-lrcx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acmr-vs-lrcx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACMR correlations · LRCX correlations
