Big Tech’s Quarter in Four Charts: AI Spending and Cloud Growth

U.S. technology giants are sharply increasing spending as they double down on artificial intelligence, intensifying investor scrutiny over whether returns can justify lofty valuations. Companies including Alphabet, Microsoft, Amazon, and Meta Platforms are expected to pour more than $630 billion into AI-related investments this year, even as profitability gains lag the pace of outlays.

Capital spending highlights the scale of the push. Amazon is leading with plans for roughly $200 billion, followed by Alphabet at up to $185 billion and Meta at as much as $135 billion. Analysts warn that markets are increasingly unforgiving of heavy investment without clear signals of returns on invested capital.

Cloud performance shows divergent momentum. Google Cloud delivered the fastest growth in the December quarter, rising 48%, buoyed by adoption of its Gemini AI model. Amazon Web Services posted 24% growth, while Microsoft Azure grew 39%.

Profit trends were uneven as higher costs weighed on Amazon and Meta, while Microsoft reported its strongest profit growth in two years. Market capitalization reflected shifting sentiment: optimism around Gemini and partnerships tied to Apple’s Siri refresh helped Alphabet’s shares outperform peers in recent months. Together, the charts underscore a sector betting big on AI—while investors wait for clearer proof of payoff.