Last refreshed: October 26, 2026 (US ET)
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LRCX

Growth

LAM RESEARCH CORP

Information Technology·Semiconductor Materials & EquipmentYield: Low (<1%)

Lam Research Corporation designs, manufactures, markets, refurbishes, and services semiconductor processing equipment used in the fabrication of integrated circuits in the United States, China, Korea, Taiwan, Japan, Southeast Asia, and Europe. The company offers ALTUS systems to deposit conformal or selective films for tungsten or molybdenum metallization applications; SABRE electrochemical deposition products for copper interconnect transition that offers copper damascene manufacturing; SPEED gapfill high-density plasma chemical vapor deposition (CVD) products; Striker single-wafer atomic layer deposition products for dielectric film solutions; and VECTOR plasma-enhanced CVD products.

Close · 3M

-40.84%

LRCX · 3M

-40.84%

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Held by 2 AI ETFs

AMOM1.090%

as of Oct 16

PQUS0.280%

as of Oct 23

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals8
Win rate0% (0/8)
Avg buy return-29.40%
AMOMnow 1.090% of fund21 signals

AMOM · Weight decrease · 7d

weight 1.200% → 1.090% (-0.110 pp)·stock down 2.0% in the 30 days before

Oct 16·entry $263.94·now $230.10

-12.82%
since Oct 16

AMOM · Weight decrease · 7d

weight 1.210% → 1.100% (-0.110 pp)·stock up 3.1% in the 30 days before

Oct 15·entry $277.46·now $230.10

-17.07%
since Oct 15

AMOM · Weight decrease · 7d

weight 1.270% → 1.120% (-0.150 pp)·stock up 5.9% in the 30 days before

Oct 14·entry $286.92·now $230.10

-19.80%
since Oct 14

AMOM · Weight decrease · 7d

weight 1.280% → 1.130% (-0.150 pp)·stock up 10.1% in the 30 days before

Oct 13·entry $301.11·now $230.10

-23.58%
since Oct 13

AMOM · Weight decrease · 7d

weight 1.380% → 1.160% (-0.220 pp)·stock up 3.8% in the 30 days before

Oct 12·entry $309.56·now $230.10

-25.67%
since Oct 12

AMOM · Weight decrease · 6d

weight 1.380% → 1.170% (-0.210 pp)·stock up 7.0% in the 30 days before

Oct 9·entry $318.84·now $230.10

-27.83%
since Oct 9

AMOM · Weight decrease · 5d

weight 1.380% → 1.190% (-0.190 pp)·stock up 1.5% in the 30 days before

Oct 8·entry $320.59·now $230.10

-28.23%
since Oct 8

AMOM · Weight decrease · 4d

weight 1.380% → 1.200% (-0.180 pp)·stock up 2.8% in the 30 days before

Oct 7·entry $329.51·now $230.10

-30.17%
since Oct 7

AMOM · Weight decrease · 3d

weight 1.380% → 1.210% (-0.170 pp)·stock up 8.5% in the 30 days before

Oct 6·entry $333.89·now $230.10

-31.09%
since Oct 6

AMOM · Accumulation · 5d

weight 1.260% → 1.270% (+0.010 pp)·stock up 18.2% in the 30 days before

Oct 5·entry $345.80·now $230.10Fresh

-33.46%
since Oct 5

AMOM · Accumulation · 5d

weight 1.260% → 1.280% (+0.020 pp)·stock up 20.5% in the 30 days before

Oct 2·entry $347.49·now $230.10Fresh

-33.78%
since Oct 2

AMOM · Accumulation · 5d

weight 1.270% → 1.380% (+0.110 pp)·stock up 17.2% in the 30 days before

Oct 1·entry $340.10·now $230.10Fresh

-32.34%
since Oct 1

AMOM · Accumulation · 5d

weight 1.240% → 1.360% (+0.120 pp)·stock up 9.0% in the 30 days before

Sep 30·entry $328.51·now $230.10Fresh

-29.96%
since Sep 30

AMOM · Accumulation · 5d

weight 1.210% → 1.330% (+0.120 pp)·stock up 7.3% in the 30 days before

Sep 29·entry $323.86·now $230.10Fresh

-28.95%
since Sep 29

AMOM · Accumulation · 5d

stock down 1.3% in the 30 days before

Sep 28·entry $314.47·now $230.10Fresh

-26.83%
since Sep 28

AMOM · Weight increase · 3d

stock down 1.0% in the 30 days before

Sep 22·entry $310.96·now $230.10Fresh

-26.00%
since Sep 22

AMOM · Weight increase · 2d

stock down 2.7% in the 30 days before

Sep 21·entry $302.28·now $230.10Fresh

-23.88%
since Sep 21

AMOM · Weight decrease · 7d

stock down 17.9% in the 30 days before

Sep 17·entry $269.31·now $230.10

-14.56%
since Sep 17

AMOM · Weight decrease · 6d

stock down 21.7% in the 30 days before

Sep 16·entry $269.23·now $230.10

-14.53%
since Sep 16

AMOM · Weight decrease · 5d

stock down 18.5% in the 30 days before

Sep 15·entry $270.87·now $230.10

-15.05%
since Sep 15

AMOM · Weight decrease · 4d

stock down 18.8% in the 30 days before

Sep 14·entry $273.49·now $230.10

-15.87%
since Sep 14
PQUSnow 0.280% of fund6 signals

PQUS · Weight decrease · 7d

weight 0.400% → 0.320% (-0.080 pp)·stock down 2.0% in the 30 days before

Oct 16·entry $263.94·now $230.10

-12.82%
since Oct 16

PQUS · Weight decrease · 6d

weight 0.400% → 0.340% (-0.060 pp)·stock up 3.1% in the 30 days before

Oct 15·entry $277.46·now $230.10

-17.07%
since Oct 15

PQUS · Weight decrease · 5d

weight 0.400% → 0.350% (-0.050 pp)·stock up 5.9% in the 30 days before

Oct 14·entry $286.92·now $230.10

-19.80%
since Oct 14

PQUS · Weight decrease · 4d

weight 0.400% → 0.360% (-0.040 pp)·stock up 10.1% in the 30 days before

Oct 13·entry $301.11·now $230.10

-23.58%
since Oct 13

PQUS · Weight decrease · 3d

weight 0.400% → 0.370% (-0.030 pp)·stock up 3.8% in the 30 days before

Oct 12·entry $309.56·now $230.10

-25.67%
since Oct 12

PQUS · Weight decrease · 2d

weight 0.400% → 0.380% (-0.020 pp)·stock up 7.0% in the 30 days before

Oct 9·entry $318.84·now $230.10

-27.83%
since Oct 9
AIUPno longer held3 signals

AIUP · Exit · 1d

stock down 21.7% in the 30 days before

Sep 16·entry $269.23·now $230.10

-14.53%
since Sep 16

AIUP · Sudden change · 1d

stock down 18.5% in the 30 days before

Sep 15·entry $270.87·now $230.10

-15.05%
since Sep 15

AIUP · Weight decrease · 4d

stock down 18.8% in the 30 days before

Sep 14·entry $273.49·now $230.10

-15.87%
since Sep 14

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.

Buffett-style framework

Too hard to callas of Sep 13

The AI ETFs show mixed but predominantly decreasing weight trends for LRCX, with several 'weight decrease trend' signals from AIUP and AMOM, alongside some sudden large changes. This cautious or reducing exposure by the AI ETFs aligns somewhat with a Buffett-style framework's 'Too Hard' verdict, which suggests avoiding companies where long-term predictability is a significant challenge.

  • Circle of CompetenceThe semiconductor equipment industry's rapid technological changes and cyclical nature make projecting stable ten-year cash flows genuinely unpredictable.
  • Economic Moat
  • Management
  • Financial Health
  • Margin of Safety

Lam Research, operating in the highly dynamic semiconductor equipment industry, presents significant challenges to a Buffett-style investment framework primarily due to the unpredictability of its long-term cash flows. The rapid technological shifts and cyclical nature of its market place it outside the typical circle of competence for reliable ten-year projections. Consequently, the framework deems it 'Too Hard' to evaluate further, regardless of its current financial performance or market valuation.

Educational interpretation generated by AI applying frameworks Warren Buffett documented in his shareholder letters and other public writings. Not a statement by Mr. Buffett or Berkshire Hathaway, and not investment advice.