Big Tech’s $660bn AI Spending Spree Sparks Bubble Fears

Major US technology giants have announced record-breaking capital expenditure plans for 2026, reigniting investor fears of an artificial intelligence (AI) investment bubble.

Companies including Amazon, Google’s Alphabet, Microsoft and Meta are collectively planning to spend around $660 billion on data centres, specialised chips and other AI infrastructure — a roughly 60 % increase from 2025 levels and a dramatic leap from prior years.

Despite strong revenue growth in cloud services and other business units, the slated spending has spooked markets. Investors worry that the pace of investment outstrips near-term earnings potential and that returns on some projects may take years to materialise.

The colossal capex figures contributed to a combined drop of nearly $900 billion in market value for these tech leaders, even as some businesses reported solid financial results.

Amazon’s announcement of an approximately $200 billion investment in 2026 alone led to a significant share price decline, while other firms also saw investor caution reflected in stock performance.

Microsoft’s heavy reliance on AI partnerships and Alphabet’s elevated capex guidance have similarly drawn scrutiny from market watchers.

Analysts say the surge in infrastructure investment highlights the ongoing AI arms race, but also underscores growing tension between long-term strategic bets and shareholder expectations for near-term profitability.

Some market participants compare the current spending environment to past periods of speculative investment, noting that the “AI boom” could face a correction if projected returns fail to meet lofty forecasts.