AI Selloff Drags Market Down as Nasdaq Closes Sharply Lower

Market Decline

The S&P 500 fell approximately 1.2% to close near 7,650, while the Nasdaq Composite dropped about 2.2% to finish near 26,128. The tech-heavy Nasdaq logged its steepest weekly decline in 18 months, capping a stretch that started with inflation surprises and ended with a debt scare.

Where the Pain Landed

The semiconductor index slid 1.8%, its sharpest drop since the 'Liberation Day' selloff in April 2025. Meta and Microsoft both declined, a sign the anxiety extended past pure-play hardware names into the companies doing much of the AI spending.

Inflation and AI Tangled Together

The trouble started earlier in the week. September's Consumer Price Index and Producer Price Index both came in hotter than expected, raising expectations for further Federal Reserve rate hikes. Anthropic's IPO enters the chat Adding to the uncertainty was scrutiny of AI lab Anthropic's planned IPO. The company reported a 45% sequential increase in third-quarter revenue, but that was not enough to quiet the debate over valuation.

What This Means for Investors

Capital-intensive projects like data centers are especially sensitive to rate expectations. CoreWeave's bond yields pushing past 15% may be the more telling signal, as debt markets often sniff out stress before stocks fully price it in. If Anthropic's listing faces tough questions despite 45% sequential revenue growth, other AI companies hoping to go public may find buyers far pickier about price. Hotter CPI and PPI readings started this chain reaction, and the next round of prints will shape expectations for the Fed's path.