Lam Research Corporation (LRCX): operating margin, 10 filed years
Operating margin at Lam Research Corporation was 35.3% in FY2026, the newest filed year. Across the 10 computed years from FY2017 it ranged from 23.7% (FY2017) to 35.3% (FY2026), with a median of 29.4%.
Tonight's figure on the company page: 35.3%, recomputed 2026-10-15. The table is each filed year on its own terms, with the formula below; the current figure may use trailing twelve months or, where the explainer says so, a different denominator.
Year by year
| Fiscal year | Operating margin | Read from |
|---|---|---|
| FY2017 | 23.7% | 10-K, filed 2017-08-15 |
| FY2018 | 29.0% | 10-K, filed 2018-08-14 |
| FY2019 | 25.5% | 10-K, filed 2019-08-20 |
| FY2020 | 26.6% | 10-K, filed 2020-08-18 |
| FY2021 | 30.6% | 10-K, filed 2021-08-17 |
| FY2022 | 31.2% | 10-K, filed 2022-08-24 |
| FY2023 | 29.7% | 10-K, filed 2023-08-15 |
| FY2024 | 28.6% | 10-K, filed 2024-08-29 |
| FY2025 | 32.0% | 10-K, filed 2025-08-11 |
| FY2026 | 35.3% | 10-K, filed 2026-08-07 |
How each year is computed
Operating income / revenue x 100
Each year is a ratio of lines in that year's filed annual report, with the nightly recompute's own rules for what counts as a filed line. Nothing is estimated, smoothed or filled in: a year that cannot be computed says why.
Read further
A computation on accounts filed with the SEC, not a recommendation and not advice. Past filings do not indicate future results. Risk disclaimer.