AI news drove big tech stock gains in early trading Thursday.

Through 10:05 a.m. ET, shares of (NASDAQ: MSFT) are up a respectable 2.2%, while semiconductor manufacturing equipment maker ASML (NASDAQ: ASML) is gaining 4.6%, and Taiwan Semiconductor Manufacturing (NYSE: TSM) is leading the pack higher with a 10.1% gain.

The precise reasons why these stocks are rising may differ -- but artificial intelligence (AI) lies at the root of each rally.

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Source Fool.com