Why Is LAM RESH CORP (LRCX) Stock Up Today?

LRCX stock surged 22.90% to $310.14 on July 30, 2026, driven by record quarterly results and a raised revenue outlook for the September quarter. The stock opened with a 7.8% gap up and reached an intraday high of $321.18 before settling near $310.29. The rally followed Lam Research’s Q4 FY2026 earnings report, which highlighted strong demand for semiconductor manufacturing equipment and a 52% gross margin.

What Happened

Lam Research reported Q4 revenue of $6.72 billion, exceeding the expected $6.68 billion, and adjusted earnings per share of $1.82, above the $1.70 forecast. The company also raised its 2026 wafer fabrication equipment (WFE) market forecast to a low $150 billion range and projected $8.1 billion in revenue for the September quarter. These results reflect continued strength in advanced packaging and AI-driven demand for semiconductor tools. The CEO and other insiders sold shares in recent weeks, while retail traders and analysts highlighted the stock’s momentum and potential for further gains. The stock’s recent 52-week low print on July 30 contrasted sharply with its current rally.

What The Data Shows

The stock’s intraday session showed a sharp upward move after the open, with volume at 5.0 million shares, or 0.5 times the 3-month average. Over the last 8 sessions, the stock had fallen 18.3% from $308.70 to $252.35 before today’s rebound. Lam Research’s fundamentals include a market cap of $337.2 billion, a P/E ratio of 47.7, and a trailing 12-month revenue growth of 26.5%. The stock’s beta of 1.81 indicates higher volatility than the broader market. Recent insider transactions totaled $59.3 million in sales over the past 90 days, while unusual options activity included $3.4 million in call premiums.

What To Watch

Lam Research’s Q1 2027 earnings report will be a key event to monitor, as the company forecasts adjusted EPS of $2.00 to $2.30. Investors should also track the stock’s performance against its 52-week range of $90.94 to $438.50 and watch for any further corporate actions or guidance updates.