Lam Research Corporation (LRCX) closed at $315.29 on September 26, 2026, gaining 2.65% on the day. The semiconductor equipment maker's market capitalization stood at $384.36 billion following the move.
The session gain extended a broader rally that has pushed shares up 9.55% over the past seven days. The weekly advance represents a notable acceleration in momentum for the stock.
Over the trailing 30-day period, LRCX is up 0.74%, suggesting much of the recent strength has been concentrated in the past week. The divergence between the monthly and weekly figures points to a sharp upturn in buying activity in the near term.
Lam Research designs and manufactures equipment used in semiconductor fabrication. Its share price performance reflects activity across the broader chip equipment sector during the period.
