Analysts wonder if China’s recent “overspending” on chip equipment is coming to a halt — and if the company is losing market share to rivals.

Applied Materials (AMAT) stock falls after the company issued guidance that fell short of Wall Street's expectations. Warren Buffett's Berkshire Hathaway (BRK-B, BRK-A) added to its stakes in homebuilder stocks Lennar (LEN) and DR Horton (DHI).

Beijing E-Town Semiconductor Technologies , a semiconductor equipment firm backed by Beijing's government, on Wednesday said it has sued U.S. chip equipment supplier Applied Materials over alleged trade secrets infringement.

Applied Materials ( NASDAQ: AMAT) provided fourth quarter fiscal 2025 guidance that demonstrated a year-over-year revenue decline of 4.9% and an adjusted earnings per share drop of 9% during its latest financial results on Thursday.

The lower guidance prompted a rapid sell-off of Applied Material’s shares, and its stock fell more than 13% in extended trading. Following that decline, the company’s stock is now up just 15% in the year to date, slightly ahead of the S&P 500 Index, which has gained just over 10% so far this year.

Applied Materials reported third-quarter revenue of $7.3 billion, beating analyst estimates of $7.22 billion. The chip equipment manufacturer reported third-quarter adjusted earnings of $2.48 per share, beating analyst estimates of $2.36 per share, according to Benzinga Pro.

The Chinese company allege Applied Materials Inc. illegally obtained, used and revealed its core technologies related to the application of plasma source in treating the surface of wafers.

This week's dividend activity included increased payouts from Cboe Global Markets ( CBOE) and Winnebago ( WGO) as well as declarations from companies such as Exxon Mobil ( NYSE: XOM) and Cisco Systems ( NASDAQ: CSCO ).