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: 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
Cost of goods sold -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 -0.14 -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 -50.40% -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 49.60% 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 -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 -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 0.02 -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 -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 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 0.49 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 34.36% 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 -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 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: 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 common-size income statement reveals several noteworthy trends over the observed period. Revenue is consistently represented as 100% across all periods, as expected. A significant fluctuation is observed in the cost of goods sold as a percentage of revenue, initially around 54-55% and decreasing to the 49-50% range in the most recent periods. This suggests improving cost management or a shift in product mix towards higher-margin offerings. Gross margin correspondingly increased, starting around 45% and rising to approximately 49% in the latest quarters.

Cost of Goods Sold
The percentage of revenue allocated to cost of goods sold demonstrates a clear downward trend, particularly noticeable from 2022 onwards. This decrease is punctuated by restructuring charges impacting the cost of goods sold in several quarters, notably in March 2023 (1.72%) and June 2023 (0.23%). The impact of these charges is reflected in the overall cost of goods sold percentage for those periods.
Operating Expenses
Operating expenses, encompassing research and development and selling, general, and administrative expenses, have generally decreased as a percentage of revenue. Research and development expenses have shown a fluctuating but overall decreasing trend, while selling, general, and administrative expenses have also decreased, though with some variability. Restructuring charges within operating expenses are present in March 2023 (1.04%) and June 2023 (0.05%).
Profitability
Operating income as a percentage of revenue has generally increased, mirroring the decline in cost of goods sold and operating expenses. This trend indicates improved operational efficiency. Net income as a percentage of revenue also exhibits a generally positive trend, though it is subject to fluctuations influenced by other income/expense and income tax expense. The most recent quarters show a significant increase in net income as a percentage of revenue, peaking at 33.26% in June 2025.
Other Income/Expense & Taxes
Other income (expense), net, demonstrates considerable volatility. Income tax expense as a percentage of revenue fluctuates significantly, with a notable peak in December 2019 (6.12%) and a substantial increase in December 2025 (5.46%). These fluctuations likely reflect changes in tax rates or the geographic distribution of income.

Overall, the financial performance appears to have strengthened over the analyzed period. The company demonstrates improving gross margins, controlled operating expenses, and increasing profitability. However, the volatility in other income/expense and income tax expense warrants further investigation to understand the underlying drivers and potential impacts on future earnings.