April 29 : KLA Corp forecast quarterly revenue above estimates on Thursday, banking on strong demand for its chipmaking tools as semiconductor manufacturers ramp up production of high-end processors for artificial intelligence. However, shares of the Milpitas, California-based company fell nearly 9 per cent in extended trading, with some analysts saying the market had expected a higher guidance. As of Wednesday’s close, KLA’s shares had gained about 50 per cent this year, as rising demand for processors powering large language models and AI applications fueled spending on chipmaking equipment made by companies such as KLA Corp.   The company expects fourth-quarter revenue of $3.58 billion, plus or minus $200 million, compared with analysts’ average estimate of $3.54 billion, according to data compiled by LSEG. It also forecast an adjusted profit of $9.87 per share for the period, plus or minus $1.00. Analysts expect a profit of $9.80 per share. “June-quarter guidance was only near expectations and reflected some memory-related margin pressure, and investors are selling off anything less than massive beats in this environment given lofty …