Lam Research Corp (LRCX): Increasing Dependence on Essential Chip Manufacturing

Green Alpha Investment’s Q1 2026 investor letter identified Lam Research Corp (NASDAQ:LRCX) as a critical player in semiconductor manufacturing, particularly for AI infrastructure. The company supplies etch and deposition tools essential for 3D chip architectures, including HBM memory stacking and Gate-All-Around transistors. Its revenue from HBM-related tools grew over 50% year-over-year, and its cryogenic etch technology won the 2025 SEMI Award for North America, enabling 3D NAND density gains for AI data storage. Lam Research’s market position strengthens as chip manufacturing becomes more complex. At the 3nm node, wafers require over 1,500 process steps—nearly triple the 500 steps at 28nm—with Lam’s equipment accounting for nearly 50% of those steps, up from 25%. The firm’s structural advantage lies in its increasing share of wafer fabrication, positioning it as a 'tax on the physics of chip manufacturing.' In Q1 2026, Lam Research reported revenue of $5.84 billion, a 9% sequential increase and a 24% rise from Q1 2025. Its stock closed at $343.71 on June 3, 2026, with a one-month return of 19.96% and a 52-week gain of 304.79%. The company’s market capitalization reached $429.83 billion, and it was added to the S&P 100, reflecting its growing importance in the semiconductor industry. Despite broader market challenges, including an S&P 500 decline in Q1 2026 and oil price surges, Lam Research outperformed benchmarks. Green Alpha’s strategy focuses on companies driving productivity and mitigating global risks, with Lam Research fitting this model as a beneficiary of AI-driven semiconductor demand. Hedge fund ownership of Lam Research increased to 123 portfolios by the end of Q1, up from 104 in the prior quarter, underscoring its appeal as a structural growth play.