Wall Street Demands Proof of AI Returns, Triggering Tech Stock Selloff

The honeymoon period for artificial intelligence spending on Wall Street appears to be over, as a major selloff in technology stocks stretched into a second day on Tuesday. Investors, who have for months fueled a record-breaking rally by rewarding companies pouring billions into AI, are now demanding concrete evidence that these investments will translate into substantial profits. The shift in sentiment hit major players hard, raising questions about the sustainability of the AI boom.

The tech-heavy Nasdaq Composite slumped 628 points, or 2.4%, to 25,537, following a 1.3% decline on Monday. The broader market also felt the pain, with the S&P 500 tumbling 1.6% and the Dow Jones Industrial Average slipping 305 points, or 0.6%, to 51,407. The selloff was broad, but it was the high-flying stocks that powered the market's rally that came under the most pressure.

Among the hardest hit was Nvidia, a bellwether for the AI chip industry, which fell 3.4%. Broadcom also tumbled 2.4%. Alphabet, the parent company of Google and part of the so-called "Magnificent Seven" group of mega-cap tech stocks, dropped 1.2% in early trading. However, the most dramatic decline was seen in SpaceX shares, which fell $4.09, or 2.7%, to $150.51, compounding a 16% plunge on Monday. Earlier this month, the stock had surged above $200 following its initial public offering, only to slump for four consecutive trading days as investors worry about its valuation exceeding $2 trillion.

According to Nigel Green, CEO of the financial consultancy deVere Group, the market is undergoing a necessary recalibration. "For a long time, the market treated AI spending as unquestionably positive," Green said in an email. "Investors are now becoming more demanding. They want evidence that unprecedented spending will translate into unprecedented profits." He characterized the sell-off as uncomfortable but ultimately healthy, marking a shift from rewarding promises to demanding proof.

The tech rout was not confined to the United States. Global markets felt the shockwaves, with South Korea's Kospi index tumbling 10.0% to 8,203.84. The decline in Asian markets was exacerbated by signs of greater regulatory scrutiny in the country's semiconductor sector, adding to investor anxiety. Bret Kenwell, a U.S. investment and options analyst at eToro, noted that broader global volatility in tech stocks is weighing heavily on U.S. shares.

Adding to the market's unease are growing concerns about interest rates. The Federal Reserve's rate-setting committee recently opened the door to a potential increase in borrowing costs in 2026, as it seeks to combat accelerating inflation caused by months of rising oil prices. Economists are forecasting that a key measure of U.S. consumer inflation, due out Thursday, sped up to 4.1% in May from 3.8% in April. As a result, traders are now betting on a nearly 90% chance the Fed will raise its federal funds rate at least once by the end of the year, up sharply from 57% just a week ago.

The confluence of demanding proof for AI spending and anxiety over interest rates is creating a perfect storm for technology stocks. While the current selloff could be a short-term correction, it signals a more discerning and cautious approach from Wall Street. For companies like Nvidia, Alphabet, and SpaceX, the pressure is now on to demonstrate that their massive AI investments are not just bold bets, but strategic moves that will generate measurable, outsized returns. The market's message is clear: promises are no longer enough; results are required.