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Call sheet · Q1'26

Lam Research (LRCX)

Q1'26 earnings call · held October 22, 2025 · compared with the Q4'25 call · management-credibility review
10/12
Disclosure score
1 medium, 5 low flags
Financial quality
Bottom line
The sleeper story is China restrictions becoming a margin tailwind - the $600M revenue hit forces premium customer mix while competitors absorb tariff costs, structurally improving Lam's profitability. The obvious headline is record margins and AI momentum, but what matters more is management quantifying the AI infrastructure multiplier ($8B WFE per $100B datacenter spend) and already having production wins ramping. The binding constraint is clean room space, not demand - Tim explicitly called out physical infrastructure limits in NAND, which is code for pricing power as equipment demand exceeds buildable capacity. Most revealing quote: 'capacity additions to meet rising bit demand may be needed sooner than previously thought' - that's management admitting their February assumptions were too conservative. My view changes if China revenue doesn't normalize below 30% as promised or if the AI infrastructure conversion rate proves overstated.

The 30-second version

  • SLEEPER STORY: China restrictions creating margin mix windfall while supply chain gets premium pricing power
  • AI infrastructure math is real: $8B WFE per $100B datacenter spend with Lam capturing high-30s share
  • NAND upgrade acceleration is pulling forward capacity constraints - clean room space becoming the binding constraint

What changed this quarter

MetricQ4'25Q1'26Change
Total Revenue$5.17B (up 10% QoQ)$5.30B (up 3% QoQ)Record revenue, deceleration but sustained above $5B
Gross Margin50.3% (record post-Novellus)50.6% (new record)+30bps sequential improvement
Operating Margin34.4% (record)35% (new record)+60bps expansion to new peak
EPS$1.33 (above high end)$1.26 (above midpoint)Still elevated despite revenue deceleration
China Revenue Mix35% (up from 31%)43% (up from 35%)+800bps sequential surge, highest in quarters
Foundry Systems %52% (record)60% (new record)+800bps concentration, third consecutive record
NAND Systems %27% (up from 20%)18% (down from 27%)Sharp -900bps decline despite upgrade acceleration narrative
CSBG Revenue$1.7B (flat)$1.8B (slight increase)Record spares+services, upgrades outpacing installed base growth
Deferred Revenue$2.68B (up $670M)$2.77B (up slightly)Plateau after big Q4 build, down payments declining
Cash$6.4B (up from $5.5B)$6.7B (up from $6.4B)Continued cash generation despite massive buybacks

Accountability tracked

7 new promises made4 narrative shifts flagged6 prior promises scored
Inside the full report
The complete write-up covers the full promise ledger with kept/missed calls, disclosure-quality scoring, the metrics-vanished check, verification items, and the questions to ask next quarter.
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Scores, kept-promise rates, and flags on this site reflect the author's opinion, applying a stated methodology to statements management made on public earnings calls. Informational and educational purposes only - not investment advice, a recommendation, or an offer to buy or sell any security. Sources believed reliable but not guaranteed; the author may hold positions in the securities discussed.

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