US equity futures are trading lower on Thursday as market participants grow increasingly wary of the escalating capital expenditure required to fuel the artificial intelligence boom.
The sell-off reflects a deepening concern among investors that the massive spending by technology giants may not yield immediate returns commensurate with the costs incurred.
This sentiment follows a broad-based retreat in US markets on Tuesday, where investors adopted a defensive posture ahead of a critical week of earnings reports from major technology firms.
The uncertainty surrounding the execution and monetization of AI projects has intensified scrutiny on companies like Alphabet, whose shares recently declined on reports that Google has delayed updates to its Gemini AI model.
The market's reaction underscores a shift in focus from pure growth narratives to a more rigorous assessment of capital efficiency.
As the tech sector prepares to report quarterly results, traders are closely monitoring guidance on AI-related spending and the tangible revenue impact of these investments.
Any signs of margin compression or delayed product rollouts could further pressure valuations across the sector.