Why KLA Corporation Rallied Today

KLA Corporation's stock experienced a significant rally on Thursday, rising up to 7.9% before settling at a 5.7% gain as of 1:52 PM EDT. The company reported impressive earnings that surpassed analysts' expectations, despite already elevated estimates driven by the growing emphasis on AI in chip manufacturing. The surge came as a relief after a sector-wide sell-off at the beginning of October.

KLA specializes in providing process control machines for detecting defects throughout the chipmaking process. As semiconductor manufacturing becomes increasingly complex for advanced logic and memory chips, KLA's role in ensuring accuracy and defect detection becomes even more crucial. This importance was evident in the company's strong financial performance, with revenue increasing by 28.8% to $4.14 billion and adjusted earnings per share rising by 38.6% to $1.22 per share.

Management provided guidance for the December quarter, projecting a midpoint of $4.7 billion in revenue and an adjusted EPS estimate of $1.44, both of which exceeded expectations. CEO Rick Wallace emphasized that process control, and KLA in particular, remains critical to the AI ecosystem's growth and benefits from various ongoing developments, such as the increasing complexity of leading-edge designs, device size, memory complexity, and performance requirements, as well as the importance of advanced packaging.

After today's rally, KLA's stock trades at slightly below 30 times its fiscal 2027 earnings estimates and around 24 times its fiscal 2028 estimates. However, the company appears to be a solid investment bet, considering the expected continuation of fab build-out in both logic and memory over the next few years. KLA has a track record of beating average estimates, and management increased share repurchases in the September quarter, demonstrating confidence in the stock price at these levels.