Analyst Report: LRCX
1. EXECUTIVE SUMMARY
Lam Research fell 16.36% to $185.20 on Thursday 5 November 2026, on volume of 31,369,500 shares, 3.21 times its 50-session average. TIKR attributes the day to a chip-equipment selloff that began after the US midterm results, with investors fearing a slowdown in data-center spending and Qualcomm's weak guidance, issued after Wednesday's close, adding pressure. Applied Materials, KLA and Teradyne fell between 13.35% and 15.24% over the same period, and the S&P 500 lost 4.36%, so the move was sector-wide and larger than the market's. The research brief identifies no Lam-specific negative news. Applied Materials, according to TIKR, had no news of its own and no analyst estimate cuts, which points to the multiple, not earnings forecasts, as the source of the damage. The $25bn buyback and $0.33 quarterly dividend were announced after Thursday's close and so did not influence the session. The stock now sits 57.7% below its 52-week high of $438.03.
2. THE CATALYST
TIKR (5 November) describes a selloff in chip-equipment stocks that began after the US midterm results. Its account has three parts:
- Data-center stocks were hit first on Wednesday 4 November, when Lam closed down 4.03% at $221.43.
- Qualcomm issued weak guidance after Wednesday's close, which added pressure on Thursday.
- Investors feared data-center spending would slow, and Lam fell alongside Applied Materials, KLA and Teradyne.
TIKR also says Democrats have signaled plans to regulate AI. That claim rests on a single source and has no second confirmation. Yahoo Finance headlines on the day spoke of equipment investors reassessing AI spending, and Yahoo Finance and Moby carried "worst day since the pandemic" and hedge-fund de-risking headlines. The brief could read only the headlines, so those causal claims are unverified.
Lam announced a $25bn buyback and a $0.33 quarterly dividend at 21:05 UTC on Thursday (company press release via Yahoo Finance), after the session ended.
| Date | Close | Change | Volume |
|---|---|---|---|
| 2026-10-30 | $239.11 | -6.01% | 18,724,300 |
| 2026-11-02 | $227.56 | -4.83% | 11,387,100 |
| 2026-11-03 | $230.72 | +1.39% | 10,754,200 |
| 2026-11-04 | $221.43 | -4.03% | 14,578,400 |
| 2026-11-05 | $185.20 | -16.36% | 31,369,500 |
The brief found no article explaining the 30 October drop.
3. COMPANY PROFILE
Lam Research (Technology, Semiconductor Equipment & Materials) makes semiconductor processing equipment used in chip fabrication, including deposition systems such as ALTUS, SABRE and Striker. Its main listed competitors in the group are Applied Materials and KLA, with Teradyne also in the peer set. Market capitalisation is $231.76bn, with a forward P/E of 15.1 and a trailing P/E of 27.6.
Recent results, from Bernstein's research summary (22 October): the September quarter (fiscal Q1 2027) brought revenue of about $8.22bn and EPS of $2.20, with a gross margin of 52.4%, a 20-year high. Management said 2027 equipment spending is capped by cleanroom capacity. Its second-quarter guidance matched consensus but may fall short of buy-side expectations, according to Bernstein. Supply-chain constraints delayed some shipments into the March quarter.
TIKR reports December-quarter guidance of about $8.6bn and says management still expects industry chip-equipment spending above $200bn in 2027. TIKR also says China made up 35% of September-quarter revenue and the US 8%, which leaves Lam exposed to Washington policy.
4. DEEP DIVE ANALYSIS
Do fundamentals justify the move? The brief offers no evidence of a deterioration in Lam's business. Reported margins were at a 20-year high, guidance was in line with consensus, and management maintained its 2027 industry outlook. TIKR's observation on Applied Materials, that analysts have not cut estimates and the decline sits in the multiple, supports reading the selloff as a de-rating. TIKR puts Applied's forward multiple at about 21x on 2 November, down from about 49x on 30 June, the date of Lam's 52-week high. My inference is that Lam went through a similar compression, consistent with its fall from $438.03 to $185.20.
Peers. Over the same period Applied Materials fell 13.58%, KLA 13.35%, Teradyne 15.24% and Qualcomm 7.36%. Lam's 16.36% decline was the steepest of the group.
Comparable episodes. A 24/7 Wall St article (19 October) described a roughly 17% weekly slide across Applied, KLA and Lam, which it called sector-wide rotation. The stock is down 27.20% over five sessions and 42.23% over 20, so the latest session extends a decline that was already under way. A German-language TIKR piece reports a 12% fall after the September earnings, but that conflicts with the flat close shown in the market data and is treated as unverified.
Bull case.
- Earnings estimates have not been cut, per TIKR's read of the group.
- Forward P/E of 15.1 is low relative to the multiples the group carried in June.
- The $25bn buyback, announced after the close, provides a new source of demand for the shares.
- A Yahoo Finance headline says global September chip sales rose sharply year on year (headline only).
- Bernstein (Buy, $350 target) and Citi (Buy, $435 target) both kept positive ratings in October, though the brief found no rating changes dated 3 to 5 November.
Bear case.
- Cleanroom capacity caps 2027 equipment spending, and guidance may fall short of buy-side hopes.
- Heavy China exposure at 35% of revenue creates policy risk.
- A possible slowdown in data-center spending would hit equipment demand with a lag.
- A director sold about $174k of shares on 3 November (headline only).
- Selling momentum and hedge-fund de-risking, if the headlines are accurate, could extend the decline.
5. TECHNICAL SNAPSHOT
The close of $185.20 is the lowest in the ten-session table, so there is no nearby support level in the recent closes. The price sits well below both the 50-day average of $286.62 and the 200-day average of $283.73, and 37.4% above the 52-week low of $134.88 set on 21 November 2025. Volume of 31,369,500 was 3.21 times the 50-session average and well above any other session in the table, which marks the move as forced, heavy selling. The intraday low of $184.24 sat just below the close, so the stock finished near its lows. The nearest resistance is the 4 November close of $221.43.
6. RISK FACTORS
- Further de-rating of AI-linked semiconductor stocks, which TIKR says drove the group.
- Policy risk from possible AI regulation (single-source claim) and from US-China trade measures, given the 35% China revenue share.
- A weaker data-center spending outlook, as Qualcomm's guidance has already shown.
- Capacity limits on 2027 equipment spending and shipment delays.
Dated catalysts:
- 12 November 2026: Applied Materials reports, which TIKR calls the next real test for the group.
- 27 January 2027: Lam's next earnings, with an EPS estimate of 2.35 and a revenue estimate of $8.64bn.
7. ACTIONABLE OUTLOOK
Short term (1-2 weeks): Direction depends on the sector, with Applied Materials' results on 12 November the main event. After a 16.36% one-day fall on three times normal volume, price swings should stay wide. The buyback announcement arrived after the close, so Friday's session is the first to trade on it.
Medium term (1-3 months): The stock needs to stop the de-rating before it can rebuild toward the $221.43 resistance. Evidence on data-center spending and any move on China or AI policy will matter more than Lam's own results, which do not report until 27 January.
Long term: The brief contains no change to Lam's fundamentals: record gross margin, in-line guidance and a maintained 2027 industry outlook. The thesis rests on whether AI-driven equipment demand holds, and Thursday's move reflects a change in how investors price it. This is analysis only and not personal financial advice.