On July 28, KLA-Tencor fell 4.65% in regular trading, trading at 190.22 USD/share, with turnover of $209 million. The decline came as the company was set to release fiscal Q4 earnings after market close, with consensus estimates projecting revenue of approximately $3.598 billion, representing 16.72% year-over-year growth, and adjusted EPS of roughly $0.997.

The broader semiconductor equipment sector faced intense selling pressure, with Lam Research down 8.25%, Applied Materials down 6.99%, ASML down 5.14%, Amkor Technology down 21.33%, and AXT down 14.52%. Asian semiconductor-related stocks also saw significant selling earlier in the session, amplifying downside momentum.

UBS recently lowered its price target on KLA-Tencor to $240 from $255 while maintaining a neutral rating, reflecting institutional caution on valuation levels. With bull-bear divergence widening ahead of earnings and sector-wide weakness compounding the pressure, the stock extended losses throughout the trading session.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)