Financial Data and Key Metrics Changes - The company reported record revenues of $5.3 billion for the September quarter, up 3% from the June quarter [5][18] - Gross margin reached 50.6%, a record in the post-Novellus period, improving from 50.3% in the June quarter [18][22] - Operating margin was 35%, also a record level for both dollars and percentage terms [18][22] - The deferred revenue balance at quarter end was $2.77 billion, slightly up from the June quarter [18] Business Line Data and Key Metrics Changes - Foundry accounted for 60% of systems revenue, up from 52% in the June quarter, marking the third consecutive record quarter [19] - Memory contributed 34% of systems revenue, down from 41% in the prior quarter, with non-volatile memory at 18%, down from 27% [19] - DRAM increased to 16% of systems revenue from 14%, driven by strong investments in high-bandwidth memory [19][20] - The Customer Support Business Group generated approximately $1.8 billion in revenue, slightly higher sequentially and year-over-year [22] Market Data and Key Metrics Changes - China represented 43% of total revenue, up from 35% in the prior quarter, with domestic Chinese customers growing significantly [21] - Taiwan accounted for 19% of revenue, flat sequentially, while Korea dropped to 15% from 22% [21] Company Strategy and Development Direction - The company anticipates a $200 million revenue impact from the new 50% affiliate rule affecting shipments to certain domestic China customers [6] - AI-related demand is expected to support sustained strength in leading-edge foundry logic and DRAM, with a robust setup for equipment spending in 2026 [7][8] - The company is investing in advanced packaging opportunities to meet future demands, with tools being engineered for panel-level packaging [15][16] Management's Comments on Operating Environment and Future Outlook - Management expects the China region to represent less than 30% of overall revenues in 2026 due to the impact of the new rule [7] - The company sees a strong demand for NAND upgrades, estimating over $40 billion in spending required over the next several years [9][20] - Management expressed confidence in outperforming WFE growth due to technology trends in semiconductor manufacturing [38] Other Important Information - The company allocated approximately $990 million to share buybacks in the September quarter, with a remaining $6.5 billion on the share repurchase plan [25][26] - Capital expenditures for the quarter were $185 million, focused on lab investments and manufacturing site expansions [27] Q&A Session Summary Question: Insights on customer conversations regarding AI infrastructure spending - Management noted that while recent announcements indicate future demand, current equipment needs are focused on enterprise SSDs and NAND upgrades [33][34] Question: Drivers for relative outperformance in 2026 - Management indicated that Lam's markets in etch and deposition are expected to outgrow WFE due to ongoing technology transitions [38] Question: Clarification on December revenue guidance - Management attributed the stronger December guidance to improved expectations in high-bandwidth memory and overall WFE strength [42] Question: Outlook for NAND market and potential for new tools - Management expects continued focus on upgrades in NAND due to a large install base, with potential for new tools if demand remains high [68] Question: Impact of clean room space on growth - Management acknowledged that physical infrastructure limitations could affect growth, but emphasized that demand is accelerating [60] Question: Dynamics of CSPG growth and margins - Management confirmed that CSPG is growing and remains accretive to operating margins, with strong demand in spares and upgrades [62]

Financial Data and Key Metrics Changes - The company reported record revenues of $5.3 billion for the September quarter, up 3% from the June quarter [5][16] - Gross margin reached 50.6%, a record in the post-Novellus period, improving from 50.3% in the previous quarter [16][20] - Operating margin was also a record at 35%, reflecting strong company-wide execution [5][20] - The deferred revenue balance increased to $2.77 billion, driven by services and system-related transactions [16] Business Line Data and Key Metrics Changes - Foundry accounted for 60% of systems revenue, up from 52% in the June quarter, marking a third consecutive record quarter [17] - Memory contributed 34% of systems revenue, down from 41% in the prior quarter, with non-volatile memory at 18%, down from 27% [17] - DRAM increased to 16% of systems revenue from 14%, driven by high-bandwidth memory demand [17] Market Data and Key Metrics Changes - China represented 43% of total revenue, up from 35% in the prior quarter, with domestic customers driving growth [18] - Taiwan accounted for 19% of revenue, flat sequentially, while Korea decreased to 15% from 22% [18] Company Strategy and Development Direction - The company anticipates a $600 million revenue impact in 2026 due to the 50% affiliate rule affecting shipments to certain domestic China customers [5] - AI-related demand is expected to support sustained strength in leading-edge foundry logic and DRAM, with significant WFE spending anticipated in 2026 [6][7] - The company is investing in advanced packaging technologies to meet future demands, with a focus on panel-level packaging [13][14] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the company's ability to navigate the challenges posed by the new regulations in China while capitalizing on global multinationals' spending [5][41] - The outlook for WFE spending in 2026 is expected to be robust, with AI-related investments driving demand [6][7] - Management noted that the company is well-positioned for both upgrade activity and new capacity builds in the future [9][10] Other Important Information - The company allocated approximately $990 million to share buybacks in the September quarter, with a remaining $6.5 billion on the repurchase plan [22][23] - Capital expenditures for the quarter were $185 million, focused on lab investments and manufacturing site expansions [25] Q&A Session Summary Question: Insights on customer conversations regarding AI infrastructure spending - Management indicated that while recent announcements provide future demand guidance, current equipment needs are focused on enterprise SSDs and NAND upgrades [30][31] Question: Drivers for relative outperformance in 2026 - Management expressed confidence that Lam's markets in etch and deposition will outgrow WFE due to ongoing technology trends in semiconductor manufacturing [34] Question: Clarification on December revenue guidance - Management noted that the stronger-than-expected WFE and high-bandwidth memory investments contributed to the revised revenue guidance for December [39] Question: Expectations for NAND market growth - Management anticipates that NAND growth will primarily be driven by upgrades rather than new tools, with a focus on existing installed base upgrades [66] Question: Impact of clean room space on growth - Management acknowledged that clean room space could limit growth across various segments, but emphasized that the equipment supply chain is generally responsive to demand [57] Question: Dynamics of CSPG growth - Management confirmed that core spare services and upgrades are growing faster than overall CSPG, which remains accretive to operating margins [60]

Financial Data and Key Metrics Changes - Lam Research reported record revenues of $5.3 billion for the September quarter, a 3% increase from the previous quarter [6][22] - Gross margin reached 50.6%, up from 50.3% in the prior quarter, while operating margin was 35%, marking a record level [21][28] - The deferred revenue balance at quarter end was $2.77 billion, slightly up from the previous quarter [22] Business Line Data and Key Metrics Changes - Foundry accounted for 60% of systems revenue, up from 52% in the previous quarter, indicating strong demand in this segment [23] - Memory contributed 34% of systems revenue, down from 41%, with non-volatile memory at 18%, down from 27% [23] - Customer Support Business Group (CSBG) generated approximately $1.8 billion in revenue, slightly higher sequentially and year-over-year, driven by strength in spares and upgrades [26][27] Market Data and Key Metrics Changes - China represented 43% of total revenue, up from 35% in the previous quarter, with domestic Chinese customers showing growth [25] - Taiwan accounted for 19% and Korea for 15% of total revenue, with Korea seeing a sequential decline [25] Company Strategy and Development Direction - The company anticipates a $200 million revenue impact from the new 50% affiliate rule affecting shipments to certain domestic China customers [7] - Lam Research is focusing on AI-related demand, which is expected to support growth in leading-edge foundry logic and DRAM, as well as continued NAND upgrade spending [8][10] - The company is investing in advanced packaging opportunities to meet future demand, particularly as AI and high-performance computing require larger chips [18][19] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in a robust setup for equipment spending in calendar year 2026, despite anticipated declines in domestic China investments [7][39] - The company expects to close calendar year 2025 with three consecutive quarters of revenue exceeding $5 billion, reflecting strong execution and demand [6][40] - Management noted that the technology requirements of AI align well with Lam's product strengths, presenting significant opportunities for growth [20] Other Important Information - The company allocated approximately $990 million to share buybacks in the September quarter, with an average buyback price of about $106 per share [32] - Capital expenditures for the quarter were $185 million, focused on lab investments in the U.S. and manufacturing site expansions in Asia [35] Q&A Session Summary Question: Insights on customer conversations regarding AI infrastructure spending - Management noted that while recent announcements indicate future demand, current conversations focus on near-term needs for equipment, particularly in NAND upgrades [43][45] Question: Relative outperformance to WFE and drivers for 2026 - Management indicated confidence that Lam's markets in etch and deposition will outgrow WFE due to ongoing technology trends in semiconductor manufacturing [48][50] Question: Clarification on December revenue guidance - Management attributed the stronger December guidance to better-than-expected demand in high bandwidth memory and overall equipment spending [53][55] Question: Expectations for NAND market and potential for new tools - Management expects the NAND business to remain predominantly upgrade-focused through 2026, with potential for new tools as demand increases [89][90] Question: Impact of clean room space on overall growth - Management acknowledged that clean room space could limit growth, but emphasized that the ability to accelerate infrastructure investments depends on customer plans [79][81]

BREAKING: Futures Rise; Intel Jumps Semiconductor equipment maker Lam Research (LRCX) late Wednesday beat estimates for its fiscal first quarter ended Sept. 28 and guided higher than views for the current period. But LRCX stock wavered in extended trading. Fremont, Calif.-based Lam earned an adjusted $1.26 a share on sales of $5.32 billion in the September quarter. Analysts polled by FactSet had expected earnings of $1.22 a share on sales of $5.22 billion. In the same period last year, Lam earned 86 cents a ...

Lam Research forecast second-quarter revenue above Wall Street estimates on Wednesday, as chipmakers ordered more of its equipment used to manufacture semiconductors for artificial intelligence applic... ...

Lam Research Corporation September quarter 2025 financial results October 22, 2025 Cautionary statement regarding forward-looking statements This presentation and the accompanying discussion contain "forward-looking statements" under U.S. securities laws. Forward-looking statements include any statements that are not statements of historical fact. Examples of forward-looking statements include, but are not limited to: (1) anticipated business, balance sheet, cash flow and financial measures and results and ...

Core Insights - Lam Research Corp. reported first-quarter earnings of $1.26 per share, exceeding analyst estimates of $1.22 [2] - The company achieved quarterly revenue of $5.32 billion, surpassing the Street estimate of $5.23 billion and showing a significant increase from $4.16 billion in the same period last year [2] Financial Performance - Earnings per share: $1.26, beating estimates [2] - Quarterly revenue: $5.32 billion, up from $4.16 billion year-over-year [2] Management Commentary - CEO Tim Archer highlighted that Lam's innovations are addressing major AI-driven semiconductor manufacturing changes [3] - The company is well-positioned for continued growth with an expanding portfolio of products and solutions across critical device segments [3] Stock Performance - Lam Research stock increased by 2.83% to $145.25 in extended trading [4]

Exhibit 99.1 FOR IMMEDIATE RELEASE Lam Research Corporation Reports Financial Results for the Quarter Ended September 28, 2025 FREMONT, Calif., October 22, 2025 - Lam Research Corporation (the "Company," "Lam," "Lam Research") today announced financial results for the quarter ended September 28, 2025 (the "September 2025 quarter"). Highlights for the September 2025 quarter were as follows: Key Financial Data for the Quarters Ended September 28, 2025 and June 29, 2025 (in thousands, except per-share data, pe ...

Core Insights - Lam Research Corporation reported a revenue of $5.32 billion for the September 2025 quarter, reflecting a 3% increase from the previous quarter [2][4][9] - The company achieved a U.S. GAAP gross margin of 50.4% and a diluted EPS of $1.24, while non-GAAP gross margin was 50.6% with a diluted EPS of $1.26 [4][5][9] - The CEO highlighted the company's strong positioning for growth driven by innovations in semiconductor manufacturing, particularly in AI [5] Financial Performance - U.S. GAAP revenue for the September 2025 quarter was $5,324 million, up from $5,171 million in June 2025 [2][4] - Gross margin increased to $2,685 million, representing 50.4% of revenue, compared to 50.1% in the previous quarter [2][4] - Operating income as a percentage of revenue rose to 34.4%, with net income reported at $1,569 million [2][4][17] Non-GAAP Results - Non-GAAP gross margin was $2,694 million, or 50.6% of revenue, compared to 50.3% in the previous quarter [3][4] - Non-GAAP operating income was 35.0% of revenue, with net income at $1,605 million, translating to $1.26 per diluted share [3][4] Cash Flow and Balance Sheet - Cash, cash equivalents, and restricted cash increased to $6.7 billion at the end of the September 2025 quarter, up from $6.4 billion [5][18] - Deferred revenue rose to $2.77 billion, indicating a strong future revenue stream [6][18] Revenue Distribution - Revenue distribution by region for the September 2025 quarter was as follows: China (43%), Taiwan (19%), Korea (15%), Japan (10%), United States (6%), Southeast Asia (5%), and Europe (2%) [7] - Systems revenue was $3.55 billion, while customer support-related revenue was $1.78 billion [7][8] Outlook - For the quarter ending December 28, 2025, the company provided guidance of approximately $5.20 billion in revenue, with a gross margin of 48.4% [9][10]

Group 1 - KLAC offers a lower valuation (P/OpInc) compared to Lam Research (LRCX), but has a higher growth rate in revenue and operating income, suggesting KLAC may be a more advantageous investment [1] - KLAC specializes in high-tech wafer inspection and process control, which drives strong recurring revenue and is essential for defect detection in advanced semiconductor nodes (3nm and below), crucial for AI chip production [3] - Lam Research supplies semiconductor processing equipment and services globally, including markets in the United States, China, Europe, Japan, Korea, Southeast Asia, and Taiwan [5] Group 2 - Evaluating the performance of Lam Research over the past year may indicate whether its current stock price is overvalued compared to competitors, with a focus on revenue and operating income growth trends [8] - The Trefis High Quality Portfolio has achieved returns exceeding 105% since its inception, providing a diversified investment strategy that mitigates stock-specific risks [4][9]