Stock Analysis on Net
Stock Analysis on Net

Lam Research Corp. (NASDAQ:LRCX)

Common-Size Income Statement 
Quarterly Data

Lam Research Corp., common-size consolidated income statement (quarterly data)

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3 months ended: Mar 29, 2026 Dec 28, 2025 Sep 28, 2025 Jun 29, 2025 Mar 30, 2025 Dec 29, 2024 Sep 29, 2024 Jun 30, 2024 Mar 31, 2024 Dec 24, 2023 Sep 24, 2023 Jun 25, 2023 Mar 26, 2023 Dec 25, 2022 Sep 25, 2022 Jun 26, 2022 Mar 27, 2022 Dec 26, 2021 Sep 26, 2021 Jun 27, 2021 Mar 28, 2021 Dec 27, 2020 Sep 27, 2020 Jun 28, 2020 Mar 29, 2020 Dec 29, 2019 Sep 29, 2019
Revenue 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
Cost of goods sold -50.17 -50.40 -49.57 -49.92 -50.98 -52.63 -51.95 -52.33 -52.14 -52.84 -52.25 -54.18 -56.78 -54.97 -53.95 -54.69 -55.26 -53.20 -54.08 -53.80 -53.73 -53.60 -52.59 -54.14 -53.39 -54.34 -54.67
Restructuring charges, net, cost of goods sold 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -0.14 -0.40 -0.40 -0.23 -0.36 -1.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Cost of goods sold -50.17% -50.40% -49.57% -49.92% -50.98% -52.63% -51.95% -52.47% -52.54% -53.24% -52.48% -54.54% -58.51% -54.97% -53.95% -54.69% -55.26% -53.20% -54.08% -53.80% -53.73% -53.60% -52.59% -54.14% -53.39% -54.34% -54.67%
Gross margin 49.83% 49.60% 50.43% 50.08% 49.02% 47.37% 48.05% 47.53% 47.46% 46.76% 47.52% 45.46% 41.49% 45.03% 46.05% 45.31% 44.74% 46.80% 45.92% 46.20% 46.27% 46.40% 47.41% 45.86% 46.61% 45.66% 45.33%
Research and development -9.98 -10.73 -10.83 -11.22 -11.14 -11.31 -11.88 -12.86 -13.50 -12.50 -12.14 -12.53 -11.10 -8.76 -8.54 -8.87 -10.03 -9.55 -8.88 -9.21 -9.91 -10.85 -11.19 -12.14 -12.30 -12.34 -13.24
Selling, general, and administrative -4.80 -5.01 -5.25 -5.19 -4.79 -5.58 -5.83 -5.59 -5.69 -6.09 -5.95 -6.23 -5.00 -4.43 -4.05 -4.53 -5.35 -5.59 -5.16 -5.25 -5.29 -6.33 -5.97 -6.66 -6.59 -6.75 -7.27
Restructuring charges, net, operating expenses 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 -0.40 -0.04 -0.06 -0.05 -1.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Operating expenses -14.78% -15.73% -16.07% -16.41% -15.93% -16.89% -17.72% -18.43% -19.60% -18.63% -18.14% -18.82% -17.14% -13.19% -12.59% -13.40% -15.38% -15.14% -14.04% -14.46% -15.20% -17.19% -17.16% -18.79% -18.89% -19.09% -20.51%
Operating income 35.04% 33.87% 34.35% 33.67% 33.09% 30.48% 30.33% 29.10% 27.87% 28.13% 29.38% 26.65% 24.35% 31.84% 33.46% 31.91% 29.36% 31.66% 31.88% 31.75% 31.07% 29.21% 30.25% 27.07% 27.72% 26.57% 24.82%
Other income (expense), net -0.61 0.49 0.56 0.73 -0.53 0.33 0.72 0.72 0.95 0.79 0.07 0.28 -0.09 -0.53 -0.85 -2.60 -1.41 0.43 -0.67 -0.17 -0.92 -0.87 -1.22 -0.27 -2.58 -0.54 -0.59
Income before income taxes 34.44% 34.36% 34.92% 34.40% 32.56% 30.81% 31.05% 29.82% 28.82% 28.92% 29.45% 26.93% 24.26% 31.30% 32.61% 29.31% 27.95% 32.09% 31.21% 31.57% 30.15% 28.35% 29.03% 26.80% 25.14% 26.03% 24.23%
Income tax expense -3.19 -4.54 -5.46 -1.14 -4.37 -3.59 -4.27 -3.46 -3.36 -3.53 -3.97 -1.90 -3.23 -3.48 -4.51 -3.24 -2.78 -3.82 -3.80 -3.96 -2.31 -3.20 -3.11 -1.84 -2.19 -6.12 -2.72
Net income 31.25% 29.82% 29.46% 33.26% 28.19% 27.22% 26.79% 26.35% 25.46% 25.39% 25.48% 25.02% 21.04% 27.83% 28.10% 26.08% 25.16% 28.27% 27.41% 27.61% 27.84% 25.15% 25.92% 24.95% 22.96% 19.92% 21.51%

Based on: 10-Q (reporting date: 2026-03-29), 10-Q (reporting date: 2025-12-28), 10-Q (reporting date: 2025-09-28), 10-K (reporting date: 2025-06-29), 10-Q (reporting date: 2025-03-30), 10-Q (reporting date: 2024-12-29), 10-Q (reporting date: 2024-09-29), 10-K (reporting date: 2024-06-30), 10-Q (reporting date: 2024-03-31), 10-Q (reporting date: 2023-12-24), 10-Q (reporting date: 2023-09-24), 10-K (reporting date: 2023-06-25), 10-Q (reporting date: 2023-03-26), 10-Q (reporting date: 2022-12-25), 10-Q (reporting date: 2022-09-25), 10-K (reporting date: 2022-06-26), 10-Q (reporting date: 2022-03-27), 10-Q (reporting date: 2021-12-26), 10-Q (reporting date: 2021-09-26), 10-K (reporting date: 2021-06-27), 10-Q (reporting date: 2021-03-28), 10-Q (reporting date: 2020-12-27), 10-Q (reporting date: 2020-09-27), 10-K (reporting date: 2020-06-28), 10-Q (reporting date: 2020-03-29), 10-Q (reporting date: 2019-12-29), 10-Q (reporting date: 2019-09-29).

The long-term financial trajectory indicates a significant expansion in overall profitability, characterized by a steady increase in both gross and operating margins. While the period between 2019 and 2022 showed relative stability, a notable volatility phase occurred in early 2023, followed by a strong recovery and margin expansion through 2026.

Gross Margin Trends
Gross margins remained largely stable between 44% and 47% for several years before experiencing a sharp decline to a low of 41.49% in March 2023. This dip coincided with a peak in the cost of goods sold, which reached 58.51% of revenue. However, a sustained recovery followed, with gross margins trending upward to reach a peak of 50.43% by June 2025 and maintaining levels near 50% through March 2026.
Operating Expense Management
Selling, general, and administrative (SG&A) expenses as a percentage of revenue demonstrated a consistent downward trend, falling from 7.27% in September 2019 to 4.80% by March 2026, indicating improved operational leverage. Research and development (R&D) spending was more volatile, fluctuating between approximately 8.5% and 13.5% of revenue. A peak in R&D intensity was observed in March 2024 at 13.50%, before moderating back toward 9.98% by the end of the analyzed period.
Operating Income Performance
Operating margins mirrored the gross margin recovery, climbing from a low of 24.35% in March 2023 to a high of 35.04% in March 2026. This expansion was driven by the dual effect of increasing gross margins and the systemic reduction of SG&A expenses. Restructuring charges appeared intermittently between March 2023 and June 2024, impacting both cost of goods sold and operating expenses, but these costs were marginal relative to total revenue.
Net Income and Bottom-Line Efficiency
Net income as a percentage of revenue exhibits a positive long-term trend, increasing from 21.51% in September 2019 to 31.25% in March 2026. A significant peak in net margin was recorded in June 2025 at 33.26%, largely due to a temporary decrease in the income tax expense ratio. Despite fluctuations in tax obligations and other net income/expenses, the underlying profitability has strengthened significantly over the observed timeframe.

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