Chip equipment makers fall after Applied Materials' weak forecast

** Shares of companies that produce tools used to make chips fall after major industry player Applied Materials forecasts fourth-quarter revenue below expectations

** Applied Materials AMAT.O, down 12%, blames weak China demand and tariff-driven economic uncertainty; its peers Lam Research LRCX.O and KLA Corp KLAC.O both drop around 5%

** Citigroup says AMAT's exposure to the leading-edge semiconductor market may have hurt it more than rivals KLA and Lam, which posted stronger results

** AMAT forecasts Q4 revenue of around $6.70 bln vs Wall Street estimates of $7.33 bln - data compiled by LSEG

** Dutch firm ASML ASML.AS, the world's biggest supplier of chipmaking equipment, similarly noted revenue growth in 2026 could face tariff-related risks

** As of last close, AMAT up 15.8% YTD, while LRCX and KLAC have added about 50% each