--- title: "Lam Research beat estimates and still fell 11.76%; KLA's October 28 print settles it" description: "Equipment makers were marked down on October 22 for a supply warning from a company that beat consensus. KLA, which disclosed the same shortages in July, reports on October 28 without having said a word since." publisher: "The Inference" section: "Chips" published: 2026-10-23T13:20:25.563Z modified: 2026-10-23T13:20:25.563Z canonical: https://theinference.org/article/lam-research-beat-estimates-and-still-fell-11-76-kla-s-october-28-print-settles-it language: en keywords: "Chip Equipment, Earnings, Stock Moves, Semiconductors" --- # Lam Research beat estimates and still fell 11.76%; KLA's October 28 print settles it > Equipment makers were marked down on October 22 for a supply warning from a company that beat consensus. KLA, which disclosed the same shortages in July, reports on October 28 without having said a word since. [Lam Research](https://theinference.org/markets/companies/lam-research) beat Wall Street on both lines last quarter, guided December higher than consensus on both lines, and still lost 11.76% on October 22. That combination has a name: investors repricing timing, not demand. [KLA](https://theinference.org/markets/companies/kla), which disclosed the same shortages months earlier and has said nothing since, reports on October 28, and its gross margin will tell us which story the market should have been selling. ## Lam's numbers say the build-out is supply-limited Lam's September quarter brought [record revenue of $8.22 billion and its first operating margin above 40%](https://newsroom.lamresearch.com/2026-10-21-Lam-Research-Corporation-Reports-Financial-Results-for-the-Quarter-Ended-September-27,-2026) [1][2]. For December it guided to $8.60 billion of revenue and $2.33 of earnings per share, above the $8.53 billion and $2.31 analysts expected [1][2]. The shortfall against what Lam could have shipped is real: CFO Doug Bettinger [said near-term supply constraints could push some December shipments into March](https://www.benzinga.com/trading-ideas/movers/26/10/62520150/lam-research-says-supply-bottlenecks-are-holding-back-revenue), and CEO Tim Archer expects shortages to limit chip and equipment makers into 2027 [2][3]. A company guiding above consensus while describing delayed shipments is not describing shrinking demand. It is describing orders it cannot fill fast enough. *Chart: **Lam's revenue hit a record in September and its December guide points higher still** Lam Research quarterly revenue rising from about $5.2 billion in mid-2025 to a record $8.22 billion in the September 2026 quarter, with December guidance of $8.6 billion marked as an estimate.* *Quarterly revenue in billions of US dollars. June 2025 through June 2026 from SEC filings; September 2026 reported and December 2026 company guidance (plus or minus $400 million) from Lam's October 21, 2026, release. [1][9]* ## KLA told this story first, and has been marked down twice for it KLA [said on its July 28 call that shortages of long-lead materials were stretching its lead times to 18 to 24 months on some products](https://www.trefis.com/stock/klac/articles/619626/how-much-could-you-lose-in-kla-stock/2026-10-21), alongside a memory-pricing headwind, with memory around 27% of September-quarter process control systems revenue [4]. The stock fell 18% after that print [5][6]. Then a peer used the same words and KLA fell another 9.6% on October 22, to $147.83, where it trades at 26.8 times forward earnings [5][6]. Two markdowns, one constraint, and silence from the company until October 28 [5][6]. ## What the bears are really betting, and what settles it Selling KLA is a bet that its memory customers are about to slow, not that shipments slip. The bear case gained material this week: [SK hynix](https://theinference.org/markets/companies/sk-hynix) [halted the Solidigm IPO review citing capital market conditions](https://shattered.io/sk-hynix-pauses-solidigm-us-ipo-dual-listing-2026/) [7][8], and [Nvidia](https://theinference.org/markets/companies/nvidia)'s chief executive said capital for the build-out is scarce [7]. But capital-market jitters sit upstream of Lam guiding to record revenue. Watch KLA's September gross margin against the 62.5% it guided, plus or minus a point [4]. If it holds, the constraint is timing and KLA has been sold twice for one delay. If it breaks, memory capex is the problem and the sellers were early rather than wrong. [Insider selling of $112.3 million over the past year, with no buying](https://www.gurufocus.com/news/9138026/a-look-at-kla-corp-klac-after-96-decline-gf-value-11518-vs-price-14783), adds caution but says nothing about demand [6]. Timing, not appetite, is the constraint in this build-out, and the shortage itself is evidence the shopping list still outruns the supply chain. ## Takeaway Lam Research beat estimates and guided above consensus while warning that supply, not demand, is capping shipments; KLA, marked down twice on the same constraint, reports October 28, and its gross margin against the 62.5% guide tells you whether the selloff was a timing error or the start of a demand problem. ## Sources 1. [Lam Research Newsroom, Lam Research Corporation Reports Financial Results for the Quarter Ended September 27, 2026, 2026-10-21](https://newsroom.lamresearch.com/2026-10-21-Lam-Research-Corporation-Reports-Financial-Results-for-the-Quarter-Ended-September-27,-2026) 2. [Benzinga, Lam Research Says Supply Bottlenecks Are Holding Back Revenue, 2026-10-22](https://www.benzinga.com/trading-ideas/movers/26/10/62520150/lam-research-says-supply-bottlenecks-are-holding-back-revenue) 3. [Yahoo Finance/Stocktwits, SOXX, SOXL, SMH Plunge As Chip Stocks Sell Off Amid Supply Chain Concerns, 2026-10-22](https://finance.yahoo.com/markets/stocks/articles/soxx-soxl-smh-plunge-chip-014552316.html) 4. [Trefis, How Much Could You Lose In KLA Stock?, 2026-10-21](https://www.trefis.com/stock/klac/articles/619626/how-much-could-you-lose-in-kla-stock/2026-10-21) 5. [TradingKey, KLA Corp Stock (KLAC) Moved Down by 9.10% on Oct 22: Drivers Behind the Movement, 2026-10-22](https://www.tradingkey.com/news/market-movers/262233053-market-movers-klac-20261022) 6. [GuruFocus, A Look at KLA Corp (KLAC) After 9.6% Decline, 2026-10-22](https://www.gurufocus.com/news/9138026/a-look-at-kla-corp-klac-after-96-decline-gf-value-11518-vs-price-14783) 7. [Yahoo Finance/Investing.com, AI-fueled tech selloff in focus; Western Digital reports, 2026-10-23](https://finance.yahoo.com/markets/stocks/articles/ai-fueled-tech-selloff-focus-082833984.html) 8. [Shattered, SK Hynix Pauses Solidigm IPO as Shares Dip 3%, 2026-10-23](https://shattered.io/sk-hynix-pauses-solidigm-us-ipo-dual-listing-2026/) 9. [Lam Research, quarterly figures from SEC filings, retrieved 2026-10-23](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000707549) --- Lam Research beat estimates and still fell 11.76%; KLA's October 28 print settles it — The Inference. Canonical: https://theinference.org/article/lam-research-beat-estimates-and-still-fell-11-76-kla-s-october-28-print-settles-it