Lam Research's results for fiscal Q1 2027 (September 2026 quarter, ended Sep 27, 2026) come from the company's own earnings release, filed with the SEC on 2026-10-21. Everything below is taken from that filing; quotes are copied exactly. Company outlooks are the company's own.
At a glance
| Item | Value |
|---|---|
| Revenue (GAAP) | $8,219 million (+54.4% vs a year earlier) |
| Diluted EPS (GAAP) | $2.19 |
| Adjusted per-share figure (company's non-GAAP measure; FFO/AFFO for REITs) | $2.20 |
| Full-year guidance | Next quarter only |
Guidance
Lam guides the December 2026 quarter to revenue of $8.60 billion +/- $400 million and diluted EPS of $2.33 +/- $0.15.
Why this label: Outlook covers only the quarter ending December 27, 2026 (revenue $8.60B +/- $400M, EPS $2.33 +/- $0.15); no full-year guidance.
Next-quarter outlook:
| Metric | Period | Range |
|---|---|---|
| revenue | December 2026 quarter (fiscal Q2 2027) | $8.60 billion +/- $400 million ($8.2–9.0 billion) |
| gross margin | December 2026 quarter (fiscal Q2 2027) | 52.5% +/- 1% (GAAP and non-GAAP) |
| operating margin | December 2026 quarter (fiscal Q2 2027) | 40.5% +/- 1% (GAAP and non-GAAP) |
| diluted EPS | December 2026 quarter (fiscal Q2 2027) | $2.33 +/- $0.15 (GAAP and non-GAAP) |
From the release
Revenue: "$ · 8,219,418 · $ · 6,722,238 · $ · 5,324,173"
Earnings per share: "U.S. GAAP diluted EPS of $2.19. • Non-GAAP gross margin as a percent of revenue of 52.4%, non-GAAP operating margin as a percent of revenue of 40.2%, and non-GAAP diluted EPS of $2.20."
Quotes are copied from the filing; in table rows, cell borders are shown as “·”.
Key fact: Record quarterly revenue of $8.22 billion, up 22% sequentially and 54% year over year.
Source
Lam Research earnings release (SEC filing), accession 0000707549-26-000052, filed 2026-10-21.
Part of the Q3 2026 Guidance Tracker. Educational only, not advice. Free weekly recap every Sunday: yieldterminalpro.com/newsletter.