April 30 (Reuters) - Chipmaking equipment supplier KLA Corp KLAC.O forecast fourth-quarter revenue and profit above Wall Street estimates on Wednesday, indicating robust demand for its advanced chips that support artificial intelligence workloads.

The company also postponed its investor day, which originally scheduled for June 18, to early-to-mid 2026, citing a "fluid business operating environment and potential implications" for its business.

KLA's major customers, including Taiwan Semiconductor Manufacturing Co 2330.TW — its largest client — are ramping up orders for chipmaking tools amid strong demand for advanced chips and high-bandwidth memory used in AI

"Though global trade dynamics are driving uncertainty across the global economy, to date, we have received no indications of demand changes from our customers for calendar year 2025," said CEO Rick Wallace.

KLA expects fourth-quarter revenue to be in a range of $3.08 billion, plus or minus $150 million. On average, analysts estimate revenue of $3 billion for the quarter, according to data compiled by LSEG.

The company also expects its adjusted per-share profit for the fourth-quarter to be $8.53, plus or minus 78 cents, compared with estimates of $7.99.

KLA provides advanced equipment, process control software and services for manufacturing wafers, integrated circuits and other semiconductor components across the U.S., Europe and Asia.

KLA reported third-quarter revenue of $3.1 billion, slightly above analysts' expectations of $3.01 billion. Its adjusted earnings per share for the quarter ended March 31 stood at $8.41 beating estimates of $8.10.

(Reporting by Priyanka.G in Bengaluru; Editing by Mohammed Safi Shamsi)

((Priyanka.G@thomsonreuters.com;))