Last refreshed: September 4, 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

+9.29%

LRCX · 3M

+9.29%

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Held by 3 AI ETFs

AIUP4.580%

as of Sep 2

AMOM1.270%

as of Sep 2

PQUS0.370%

as of Sep 1

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 signals11
Win rate0% (0/11)
Avg buy return-8.52%
AIUPnow 4.580% of fund2 signals

AIUP · Sudden change · 1d

weight 4.260% → 4.580% (+0.320 pp)·stock down 1.5% in the 30 days before

Sep 1·entry $290.20·now $292.66

+0.85%
since Sep 1

AIUP · New entry · 1d

weight 0 → 4.520% (new)·stock up 7.9% in the 30 days before

Aug 25·entry $314.66·now $292.66Fresh

-6.99%
since Aug 25
AMOMnow 1.270% of fund17 signals

AMOM · Weight decrease · 4d

weight 2.710% → 1.270% (-1.440 pp)·stock down 9.3% in the 30 days before

Sep 2·entry $288.32·now $292.66

+1.51%
since Sep 2

AMOM · Weight decrease · 3d

weight 2.710% → 2.540% (-0.170 pp)·stock down 1.5% in the 30 days before

Sep 1·entry $290.20·now $292.66

+0.85%
since Sep 1

AMOM · Weight decrease · 2d

weight 2.710% → 2.600% (-0.110 pp)·stock up 2.9% in the 30 days before

Aug 31·entry $301.49·now $292.66

-2.93%
since Aug 31

AMOM · Weight increase · 4d

weight 2.620% → 2.740% (+0.120 pp)·stock up 7.9% in the 30 days before

Aug 25·entry $314.66·now $292.66Fresh

-6.99%
since Aug 25

AMOM · Weight increase · 3d

weight 2.620% → 2.720% (+0.100 pp)·stock up 1.6% in the 30 days before

Aug 24·entry $310.17·now $292.66Fresh

-5.65%
since Aug 24

AMOM · Weight increase · 2d

weight 2.620% → 2.700% (+0.080 pp)·stock down 1.8% in the 30 days before

Aug 21·entry $314.00·now $292.66Fresh

-6.80%
since Aug 21

AMOM · Weight decrease · 2d

weight 2.830% → 2.620% (-0.210 pp)·stock down 4.6% in the 30 days before

Aug 19·entry $307.17·now $292.66

-4.72%
since Aug 19

AMOM · Accumulation · 5d

weight 2.660% → 2.830% (+0.170 pp)·stock up 9.7% in the 30 days before

Aug 17·entry $343.84·now $292.66Fresh

-14.88%
since Aug 17

AMOM · Accumulation · 5d

weight 2.240% → 2.760% (+0.520 pp)·stock up 3.6% in the 30 days before

Aug 14·entry $332.36·now $292.66Fresh

-11.94%
since Aug 14

AMOM · Accumulation · 5d

weight 2.240% → 2.810% (+0.570 pp)·stock up 0.5% in the 30 days before

Aug 13·entry $337.01·now $292.66Fresh

-13.16%
since Aug 13

AMOM · Weight increase · 2d

weight 2.650% → 2.730% (+0.080 pp)·stock down 5.8% in the 30 days before

Aug 12·entry $326.11·now $292.66Fresh

-10.26%
since Aug 12

AMOM · Weight increase · 2d

weight 2.240% → 2.700% (+0.460 pp)·stock down 11.8% in the 30 days before

Aug 7·entry $311.35·now $292.66Fresh

-6.00%
since Aug 7

AMOM · Sudden change · 1d

weight 2.240% → 2.660% (+0.420 pp)·stock down 8.2% in the 30 days before

Aug 6·entry $305.77·now $292.66

-4.29%
since Aug 6

AMOM · Weight decrease · 3d

stock down 38.6% in the 30 days before

Jul 29·entry $252.35·now $292.66

+15.97%
since Jul 29

AMOM · Weight decrease · 2d

stock down 28.9% in the 30 days before

Jul 28·entry $269.61·now $292.66

+8.55%
since Jul 28

AMOM · Weight decrease · 4d

stock down 18.0% in the 30 days before

Jul 20·entry $306.76·now $292.66

-4.60%
since Jul 20

AMOM · Weight decrease · 3d

stock down 15.2% in the 30 days before

Jul 17·entry $313.30·now $292.66

-6.59%
since Jul 17
PQUSnow 0.370% of fund5 signals

PQUS · Weight decrease · 2d

weight 0.550% → 0.500% (-0.050 pp)·stock down 1.8% in the 30 days before

Aug 21·entry $314.00·now $292.66

-6.80%
since Aug 21

PQUS · Weight increase · 2d

weight 0.750% → 0.800% (+0.050 pp)·stock down 11.8% in the 30 days before

Aug 8·entry $306.40·now $292.66Fresh

-4.48%
since Aug 8

PQUS · Weight decrease · 2d

stock down 25.1% in the 30 days before

Jul 31·entry $293.02·now $292.66

-0.12%
since Jul 31

PQUS · Weight decrease · 2d

stock down 15.2% in the 30 days before

Jul 19·entry $306.76·now $292.66

-4.60%
since Jul 19

PQUS · Weight increase · 2d

stock down 15.2% in the 30 days before

Jul 17·entry $313.30·now $292.66Fresh

-6.59%
since Jul 17
LQAIno longer held2 signals

LQAI · Exit · 1d

weight 0.120% → 0 (exited)·stock down 8.2% in the 30 days before

Aug 6·entry $305.77·now $292.66

-4.29%
since Aug 6

LQAI · Weight decrease · 2d

stock down 28.9% in the 30 days before

Jul 28·entry $269.61·now $292.66

+8.55%
since Jul 28
AIEQno longer held3 signals

AIEQ · Exit · 1d

weight 0.290% → 0 (exited)·stock down 25.1% in the 30 days before

Aug 2·entry $294.61·now $292.66

-0.66%
since Aug 2

AIEQ · Weight decrease · 2d

stock down 31.3% in the 30 days before

Jul 30·entry $297.72·now $292.66

-1.70%
since Jul 30

AIEQ · Weight decrease · 3d

stock down 15.2% in the 30 days before

Jul 19·entry $306.76·now $292.66

-4.60%
since Jul 19

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 Aug 9

AI ETFs show mixed signals for Lam Research, with some increasing their positions and others exiting or decreasing weight. This contrasts with a Buffett-style framework, which deems the company 'Too Hard' due to the inherent unpredictability of its industry, suggesting a value investor would avoid a position regardless of these mixed signals.

  • Circle of CompetenceThe semiconductor equipment industry's inherent cyclicality and rapid technological change make long-term cash flow projections and predictable unit economics genuinely challenging for a decade.
  • Economic MoatA definitive assessment of a durable competitive advantage for ten years cannot be made, given the industry's dynamic nature and limited data on specific moat sources.
  • ManagementThe provided data does not offer sufficient information to evaluate management's candor, capital allocation discipline, or 'skin in the game.'
  • Financial HealthThe limited financial data (single year ROE, revenue growth) is insufficient to assess multi-year financial health metrics such as 10-year average ROE, operating margin trends, debt manageability, or owner earnings.
  • Margin of SafetyWithout reliable cash flow projections and detailed financial data to estimate intrinsic value, a defensible margin of safety cannot be determined.

This analysis concludes that Lam Research falls outside the circle of competence for a value investor due to the inherent unpredictability of the semiconductor equipment industry's long-term cash flows. While some financial metrics appear strong, the inability to reliably project future earning power for a decade prevents further evaluation. Consequently, the company is classified as 'Too Hard' to assess within this framework.

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.