Lam Research Stock Is 45% Below Its High. How Deep Have Past Drops Gone?

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Shares of Lam Research (LRCX) have dropped 40% or more in three of the 15 market shocks it has traded through since 2007, meaning a decline of that size has happened before. The stock lost 24.7% in the month to October 26, 2026, compared with a 0.8% dip for the S&P 500, even as Lam reported its fifth straight quarter of record revenue. At $237.50 on October 26, the shares were already 45.1% below their June 30 high. Buyers stepping in now may be counting on Lam holding up in a downturn and on those record sales lasting. So how far has Lam fallen when the whole market turned, and for how long?

How Far Has Lam Research Fallen In Market Shocks?

Lam usually drops further than the broader market during downturns. The deepest decline across those 15 shocks occurred during the 2008-2009 financial crisis, when the stock fell 66% while the S&P 500 lost 53%. The performance gap widened during the 2022 inflation shock, as Lam slid 56% against a 24% decline for the index. The third drop of 40% or more happened in the 2020 COVID-19 crash, when Lam lost 44% compared with a 34% fall for the index. Across all 15 shocks, Lam recorded an average decline of 22.8%, against the 15.8% average drop for the S&P 500.

The shares typically recover within months, though some rebounds take longer. Measured from the lowest close in each shock, the stock took a median of 2.4 months to return to its previous high. Three of those recoveries lasted more than a year. The longest period followed the summer 2007 credit crunch and required 80.3 months, while the rebound after the 2008-2009 crisis took 23.2 months.

Lam Research’s Latest Results Show No Strain

So far, the company’s record sales are lasting. Revenue for the September quarter, fiscal Q1 2027, reached $8.22 billion. That figure was up 54.4% from a year earlier, and management said systems revenue in memory rose 120% over the same period. Operating margin came in at 40.0%, up from 34.4% a year earlier.

Over the last twelve months, Lam’s operating margin was 37.0%. That is the highest level across the 40 quarter ends from fiscal Q2 2017 to now, up from 19.7% at the start of that period. The company also finished September with $7.44 billion in cash and short-term investments, held against $3.74 billion of debt.

What Risks Has Lam Research Management Flagged?

During the October 21, 2026 call, management identified pressures that the record quarter does not show. Lam guided December-quarter revenue to $8.6 billion, plus or minus $400 million. Management said that forecast would have been a bit higher if not for near-term supply chain constraints, adding that sales held back by timing will ship in the March quarter.

Management also expects supply to stay tight in calendar 2027. The company sees clean room space and supply chain constraints for certain components continuing to keep chipmakers and equipment companies from fully meeting demand.

China presents another pressure. Management expects the country to account for a meaningfully lower share of Lam’s revenue in the December quarter. That shift is driven by domestic customers in China, while multinationals operating there likely stay reasonably strong. China’s share of revenue in the December quarter is the figure to watch when Lam reports, expected in January 2027.

How To Act On LRCX?

Not necessarily on Lam Research alone, if your goal is long-term wealth. Wealth is built by owning the companies that keep outperforming, the leaders of their industries, wherever they are. Lam Research is one. Over the five years to October 2026, its stock rose 355%, ahead of 25 of the 27 other companies in Semiconductor Materials & Equipment, where the typical company rose 68%.

Finding companies like these takes comparison across industries and sectors, and that is what the Trefis High Quality (HQ) Portfolio does. It holds 30 quality companies in equal weight and, since its inception in September 2020, has returned more than 105%, ahead of a benchmark that combines the S&P 500, the S&P MidCap 400 and the Russell 2000. See how we find the leaders.

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