KLA Corp issued a positive revenue forecast for its fourth quarter, citing robust demand for its chipmaking tools. This surge is driven by semiconductor manufacturers increasing production of high-end processors essential for artificial intelligence applications.

Despite the optimistic outlook, KLA's stock experienced a decline in extended trading, as some market observers noted the company's guidance slightly missed higher expectations.

KLA's shares have seen significant growth this year, propelled by the increasing demand for processors that power large language models and AI. This trend has stimulated investment in chipmaking equipment manufactured by companies like KLA.

The company projects fourth-quarter revenue between $3.38 billion and $3.78 billion, with analysts' average estimate at $3.54 billion. KLA also anticipates an adjusted profit per share of $8.87 to $10.87, versus the expected $9.80.

Analysts attribute the stock's dip to guidance that was near expectations, with some memory-related pressures, and a market environment sensitive to anything less than exceptional performance given current valuations.

KLA's specialized tools are critical for identifying and rectifying microscopic defects during the intricate chipmaking process. The company also benefits from a stable recurring revenue stream through its services business, which offers equipment maintenance and optimization.

KLA recently announced a substantial $7 billion share buyback program and a 21% increase in its quarterly dividend.