KLA (KLAC.US) disclosed its fiscal year 2026 second-quarter earnings after the U.S. market closed on January 29, revealing record quarterly revenue of $3.30 billion. This figure represents an increase of approximately 7.2% compared to the same period last year and surpassed the market's consensus expectation of $3.26 billion.

On the profit front, KLA's GAAP net income was $1.15 billion, translating to diluted earnings per share (EPS) of $8.68, a significant rise from $6.16 per share a year earlier. Excluding specific items, Non-GAAP diluted EPS reached $8.85, exceeding the average analyst forecast of $8.80.

This robust performance is primarily attributed to the massive global expansion of AI infrastructure, which has driven strong inspection demand, particularly from foundries for advanced process logic chips and DRAM powered by High Bandwidth Memory (HBM). Furthermore, the company's cash flow remained solid, with operating cash flow for the quarter at $1.37 billion and free cash flow (FCF) reaching $1.26 billion.

Looking ahead, the company provided an optimistic outlook for the third quarter of fiscal 2026, anticipating revenue to be around $3.35 billion and Non-GAAP EPS expected to be approximately $9.08. CEO Rick Wallace emphasized during the earnings call that KLA's dominant position in semiconductor process control makes it a core beneficiary as chip manufacturers transition to more advanced process nodes.

However, despite the better-than-expected core financial metrics and future guidance, KLA's stock experienced a significant pullback in after-hours trading, at one point falling more than 8%. This reflects a market sentiment of profit-taking following the stock's rapid appreciation over the past period.

Market analysis widely suggests that this divergence—positive earnings paired with a declining stock price—stems primarily from investor concerns over KLA's historically high valuation and wariness about the company's revenue growth rate, which has now slowed for three consecutive quarters. Additionally, although the quarter's free cash flow was $1.26 billion, it showed a slight deviation from the exceedingly high expectations set by some sell-side institutions.

Against the backdrop of cyclical fluctuations in the semiconductor industry, the capital market is clearly reassessing the company's future growth resilience.