LRCX vs STK: Correlation
Lam Research (LRCX) and Columbia Seligman Premium Technology Growth Fund Inc (STK) show a strong relationship: their 3-year correlation of weekly returns is 0.71.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LRCX and STK?
Over the past 3 years, LRCX and STK moved with a correlation of 0.71, which is strong. The relationship has been stable: the 1-year correlation (0.61) sits close to the 3-year figure. Over 5 years the correlation is 0.74, and the annualized covariance of weekly returns is 876.3 %².
By 3-year correlation, STK places #14 of the 36 assets tracked against LRCX. The last year tells two different stories: LRCX led by 132.2 percentage points, +209.0% for LRCX against +76.8% for STK. Note the risk asymmetry: LRCX runs 1.8 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
LRCX vs STK: side by side
| LRCX (Lam Research) | STK (Columbia Seligman Premium Technology Growth Fund Inc) | |
|---|---|---|
| 1-year return | +209.0% | +76.8% |
| 5-year return | +452.0% | +153.2% |
| Volatility (ann.) | 46.7% | 26.4% |
| Beta vs S&P 500 | 2.03 | 1.51 |
| Max drawdown (3Y) | -47.1% | -26.6% |
| Market cap | $398.6B | – |
| P/E (trailing) | 54.4 | 5.9 |
| Dividend yield | 0.33% | 0.00% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | LRCX | STK |
|---|---|---|
| 2022 | -40.7% | -30.4% |
| 2023 | +88.6% | +49.2% |
| 2024 | -6.8% | +17.7% |
| 2025 | +139.2% | +24.9% |
| 2026 | +86.5% | +47.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LRCX and STK good diversifiers for each other?
To a limited degree. At 0.71 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 LRCX and STK?
The LRCX/STK correlation stands at 0.71 on a 3-year window (1 year: 0.61, 5 years: 0.74), computed from weekly returns as of 2026-08-27.
Is STK a good diversifier for LRCX?
To a limited degree. At 0.71 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 0.71 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/lrcx-vs-stk.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/lrcx-vs-stk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: LRCX correlations · STK correlations
