New Delhi, April 30 -- Shares of US technology heavyweights such as Alphabet, Amazon, Meta Platforms, and Microsoft, which together account for more than a fifth of the S&P 500's total market capitalisation, were trading mixed in premarket trade on Thursday, 30 April, as investors assessed their March quarter earnings and updated artificial intelligence spending plans.

Alphabet jumped 7% in premarket trading after beating earnings beat Street estimates, while Amazon also moved higher by 3% following its earnings report. Microsoft Corp is trading with a modest gain of 1% after growth in its cloud-computing business fell short of elevated expectations, while Meta Platforms tumbled 8% amid fresh concerns over its aggressive spending plans....