Tech Giants Bounce Back as Cloud Growth Validates AI Investments

The tech sector has experienced a significant turnaround in sentiment following strong earnings reports from Microsoft and Amazon. The stocks of both companies surged after their latest earnings releases, with Microsoft's stock price recovering its year-to-date losses and turning to a 3.4% gain, while Amazon's stock price rose sharply in tandem, reaching an 18% year-to-date gain.

The combined market value of the two companies increased by $1.3 trillion U.S. dollars in just six trading days since Microsoft released its earnings on July 29. The cloud business performance of both giants was a key catalyst for this sentiment reversal, with Microsoft's Azure cloud revenue growing 43% year-over-year in the fourth fiscal quarter and Amazon's AWS cloud business revenue jumping 37% year-over-year in the second quarter.

The market is slowly reaching a consensus that the investment logic of leading tech companies is clear, with investors reassessing the hefty artificial intelligence capital expenditures. Tom Plumb, president of Wisconsin Capital Management, pointed out that 'the current return expectations from cloud businesses are sufficient to cover short-term input costs.'

However, not everyone feels at ease with this rebound. Michael O'Rourke, chief market strategist at Jonestrading, believes that the phenomenon where all gains are completed within a few days is not healthy market behavior.