Alphabet and Tesla Shares Slide as Investors Question AI Spending Surge

Shares of Alphabet and Tesla fell in after-hours trading following the release of their latest quarterly earnings reports, with both companies disclosing significantly higher spending on artificial intelligence infrastructure. The market reaction underscores growing investor impatience as these tech giants pour billions into AI development without clear near-term revenue offsets. Alphabet's earnings reveal that the company's capital expenditures climbed to levels that surprised analysts, driven by data center expansion and AI model training. Similarly, Tesla reported a surge in spending on AI-related hardware and software, including its Dojo supercomputer and autonomous-driving systems, which weighed on profit margins. The sell-off suggests that Wall Street is beginning to demand more concrete evidence that AI investments will translate into earnings growth. Both companies have framed AI as a core long-term driver, but investors are now scrutinizing the timeline to profitability and the potential for spending to keep rising. For Alphabet, the concern centers on whether its cloud division and advertising tools can monetize AI quickly enough to justify the outlays. For Tesla, the focus is on whether its Full Self-Driving technology and robotaxi ambitions will become material revenue sources, or if the company is simply burning cash in a race with rivals. These developments signal a broader shift in market sentiment around the AI trade. While the sector has been a major beneficiary of investor enthusiasm, the latest earnings from two of its largest players are prompting a more cautious assessment of valuation and capital allocation.