US Stock Market Move | KLA Corporation (KLAC.US) tumbles 10% as its performance guidance for the third quarter of the 2026 fiscal year falls below expectations.

On Friday, KLA Corporation (KLAC.US) fell by 10%, closing at 1513.01 US dollars. In terms of news, KLA announced revenue of 3.3 billion US dollars for the second quarter of the 2026 fiscal year ending on December 31, 2025, with an adjusted earnings per share of 8.85 US dollars, both surpassing market expectations. However, the performance guidance for the third quarter did not meet market expectations. The company's guidance for the third quarter indicated revenue of 3.35 billion US dollars with a fluctuation of 150 million US dollars. The non-GAAP diluted earnings per share are expected to be around 9.08 US dollars with a fluctuation of 0.78 US dollars. This guidance did not meet market expectations for accelerated growth. The moderate growth rate did not reflect a strong acceleration trend driven by artificial intelligence. Market analysis widely believes that the deviation phenomenon of "positive earnings but falling stock prices" this time is mainly due to investors' concerns about the historically high valuation of KLA, as well as caution about the company's revenue growth rate slowing down for three consecutive quarters.