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Lam Research's operating margin went from 34.4% to 40.0% as revenue rose 54.4%
The operating margin went from 34.4% in the same period a year earlier to 40.0%. Revenue rose 54.4%.
aiSwingX™ Editorial · Reviewed
Published
Lam Research Form 10-Q (fiscal Q1 2027, filed 2026-10-22): inline XBRL in the consolidated financial statements, SEC EDGAR accession 0000707549-26-000054
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Lam Research (LRCX) filed its quarterly report (10-Q) for fiscal Q1 2027 on October 22. The operating margin went from 34.4% in the same period a year earlier to 40.0%. Revenue rose 54.4%.
In plain terms
Out of every dollar of sales, what Lam Research keeps from its main business rose from a year earlier. The cost lines show where the difference came from.
What happened
Lam Research (LRCX) filed its quarterly report (10-Q) for fiscal Q1 2027 with the SEC on October 22. It covers June 29 to September 27, 2026.
The operating margin went from 34.4% in the same period a year earlier to 40.0%. Revenue rose 54.4%.
All figures come from the filing the company made with the SEC. Year-earlier values and past trends come from data the SEC collects on each company. Sources are listed at the end.
We find the numbers that are in the filing but not in the news, and analyze what they mean, how big they are and what to watch next quarter — with the arithmetic and quarterly metrics. Cancel any time.
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FAQ
Where can I check these figures myself?
On SEC EDGAR, in Lam Research's 10-Q (accession 0000707549-26-000054). The same values appear on the corresponding lines of the consolidated statements.
Are the ratios figures the company reports?
No. They divide two figures stated in the filing for the same period. The working is in the arithmetic table in the subscriber section.
Are figures from different periods mixed?
No. Income and cash items are divided only by items covering the same length of time, and balances are always stated against the previous fiscal year-end.
How aiSwingX™ wrote this
We read the filing on SEC EDGAR in full — statements, notes, MD&A. Press releases and news are not used as sources.
Every figure is reconciled to its location in the filing and to XBRL data. One mismatch means no publication.
An editor reviews before publication; any later change is recorded in the revision history.
Lam Research Form 10-Q (fiscal Q1 2027, filed 2026-10-22): inline XBRL in the consolidated financial statements, SEC EDGAR accession 0000707549-26-000054 · SEC EDGAR · This article is not investment advice. Disclaimer
Open the filing cited at the bottom of the article (e.g. the 10-Q note number) on SEC EDGAR via the link at the end of the article.
What is the at-a-glance box?
A four-item summary of the article: the key figure, what it means, the source, and what to watch next quarter. If you are short on time, read just that.
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aiSwingX™ analyzes US filings and reports them as news investors can read.
9 ChatGPT: 1 Claude: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 2
Read by AI & crawlers
ChatGPT1
Claude0
Google · Gemini0
Perplexity0
Meta AI0
Amazon0
Others2
Counted by the name each crawler gives. Google · Gemini includes Googlebot, whose index Google also uses for its AI features; other search engines and bots are in Others.