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AI demand, earnings optimism lift tech giants’ market value in May

By Thomson Reuters Jun 2, 2026 | 9:58 AM

June 2 (Reuters) – The world’s most valuable technology companies with the exception of Alphabet added billions of dollars in market ​value in May, as upbeat earnings ‌outlooks and strong demand for AI chips fuelled a rally in their shares.

Apple, memory chipmakers Micron Technology, Samsung Electronics and SK Hynix led the gains, ‌adding $598 ​billion, $512 billion, $481 billion and $377 ⁠billion, respectively, in market ⁠value. Their valuations rose to $4.58 trillion, $1.09 trillion, $1.10 trillion and $1.34 trillion, respectively.

In late April, Apple pointed to strong demand for its flagship ​iPhone 17 and MacBook Neo and announced a fresh $100 billion share buyback.

Samsung reported ⁠an eightfold jump in first-quarter ⁠operating profit in April, while ​Micron drew analyst upgrades after saying its 2026 ​high-bandwidth memory (HBM) chips were already sold out ‌and next-generation HBM4 products were in production.

Microsoft and Nvidia also gained, with their market values rising by $315 billion and $276 billion, respectively, to $3.35 ⁠trillion and $5.11 trillion.

Nvidia forecast second-quarter revenue above expectations in May and announced an $80 billion share repurchase ⁠programme.

Bucking the ‌trend, Alphabet’s market value dropped $59.77 billion ⁠to $4.59 trillion.

In the world’s 20 ​most ‌valuable companies including other sectors, banking ​group JPMorgan ⁠Chase and retailing giant Walmart saw the biggest falls in market capitalisation in May, by $130.47 billion and $37.3 billion, respectively, to $921 billion and $802 billion.

(Reporting by Gaurav Dogra in Bengaluru; Editing by ​Emelia Sithole-Matarise)