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Lam Research Corp (LRCX) operating KPIs

LRCXNasdaqSpecial Industry Machinery, NECFiscal year ends June 27
Financials through Q4 FY2026, quarter ended Jun 28, 2026Last filing: 10-Q on Oct 22, 2026Score 21/3065% above fair value
$239.11−15.28 (-6.01%)

Close on Oct 30, 2026Market cap $299.20BP/E 41.5Yield 0.43%

Lam Research systems revenue share — Foundry (%)

Foundry share of total Systems revenue (46% in Q1 FY27; 44% in Q4 FY26; 56% in FY2026), led by gate-all-around (GAA) nanosheet transistor etch/ALD and advanced packaging.

QuarterlyAnnual
Latest, Q1 FY27
46.0%
Period ended Sep 27, 2026
Change on a year earlier
-14.0 pts
60.0% in Q1 FY26
History
31 quarters
Since Q1 FY19
Sources
28
Documents cited below

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedSystems revenue share — Foundry (%)Year on yearSource
Q1 FY27Sep 27, 202646.0%-14.0 ptsLam Research Form 10-Q (filed 2026-10-22) ↗
Q4 FY26Jun 28, 202644.0%–Lam Research FY2026Q4 Earnings Call Transcript (The Motley Fool) ↗
Q3 FY26Mar 29, 202654.0%+6.0 ptsLam Research Form 10-Q (filed 2026-04-23) ↗
Q2 FY26Dec 27, 202559.0%+24.0 ptsLam Research Form 10-Q (filed 2026-01-29) ↗
Q1 FY26Sep 27, 202560.0%+19.0 ptsLam Research Form 10-Q (filed 2026-10-22) ↗
Q3 FY25Mar 29, 202548.0%+4.0 ptsLam Research Form 10-Q (filed 2026-04-23) ↗
Q2 FY25Dec 27, 202435.0%-3.0 ptsLam Research Form 10-Q (filed 2026-01-29) ↗
Q1 FY25Sep 27, 202441.0%+5.0 ptsLam Research Form 10-Q (filed 2025-10-24) ↗
Q4 FY24Jun 28, 202443.0%-4.0 ptsLam Research FY2024Q4 Earnings Call Transcript (The Motley Fool) ↗
Q3 FY24Mar 29, 202444.0%-2.0 ptsLam Research Form 10-Q (filed 2025-04-25) ↗
Q2 FY24Dec 27, 202338.0%+7.0 ptsLam Research Form 10-Q (filed 2025-01-31) ↗
Q1 FY24Sep 27, 202336.0%+2.0 ptsLam Research Form 10-Q (filed 2024-10-28) ↗
Q4 FY23Jun 28, 202347.0%+21.0 ptsLam Research FY2023Q4 Earnings Call Transcript (The Motley Fool) ↗
Q3 FY23Mar 29, 202346.0%+25.0 ptsLam Research Form 10-Q (filed 2024-04-29) ↗
Q2 FY23Dec 27, 202231.0%0.0 ptsLam Research Form 10-Q (filed 2024-01-29) ↗
Q1 FY23Sep 27, 202234.0%+9.0 ptsLam Research Form 10-Q (filed 2023-10-23) ↗

Cite this data

StockData. (2026). Lam Research Systems revenue share — Foundry (%), quarterly Q1 FY19–Q1 FY27 [Data set]. Compiled from Lam Research SEC filings and investor materials. https://stockdatahq.com/stocks/lrcx/kpis/sys-pct-foundry

See every metric in the Lam Research KPI table. Data updated Oct 25, 2026.