April 30 : Alphabet's blowout cloud growth has reset expectations across major tech companies, leaving investors to recalibrate which firms are delivering the clearest returns. All four of the U.S. tech giants that reported results on Wednesday signaled that spending on artificial intelligence would not slow down, with combined outlays now set to surpass $700 billion this year, up from around $600 billion previously. Alphabet shares jumped more than 6 per cent in premarket trading on Thursday,