Hot CPI Data Triggers Nasdaq Sell-Off as AI Stocks Plunge

Key points

• September CPI data exceeded expectations, with headline inflation rising 0.6% month-over-month and 3.6% year-over-year, driven by rising energy costs.
• The Nasdaq Composite closed down 1.88% at 26,692.87, while the S&P 500 ETF (SPY) fell 1.08% to $769.60.
• AI infrastructure and tech stocks suffered the steepest losses: CoreWeave (CRWV) dropped 15.5%, Nebius (NBIS) fell 10.1%, and Oracle (ORCL) declined 8.8%.
• The 10-year Treasury yield rose to 5.19%, and the VIX volatility index surged 10.5% to 16.87, signaling increased market uncertainty.
• Economists polled by Dow Jones had expected the CPI print, but the actual figures intensified bets that the Fed will need to raise rates to tame inflation.

Background

This market reaction follows a volatile period for inflation data. In September, hot August CPI figures pushed market odds for a Fed rate hike to 85%, though subsequent cooling wage data in early October briefly eased those fears. The current CPI release is the last major inflation print before the midterm elections, adding political and economic significance to the data.

How outlets are covering it

Yahoo Finance emphasizes the direct impact of the CPI data on AI and tech stocks, highlighting the sensitivity of high-growth sectors to interest rate changes. CNBC provides broader context, noting that rising energy costs from the Iran war have been a significant driver of inflation since February, and that New York Fed President John Williams previously suggested disinflationary forces were at play, which contrasts with the current hot data. Barchart.com was inaccessible due to a 403 error, so no perspective could be derived from that source.

Why it matters

The sharp market drop signals a shift in investor expectations regarding monetary policy. If the Fed raises rates to combat persistent inflation, it could increase borrowing costs for businesses and consumers, potentially slowing economic growth. The volatility in AI stocks also raises questions about the sustainability of recent tech valuations in a higher-rate environment.

What to watch

Investors will closely watch the producer price index (PPI) data released the following day for further insights into wholesale inflation trends. The Federal Reserve’s next meeting will be critical for determining whether rate hikes are imminent. Additionally, the midterm elections may influence fiscal policy and market sentiment in the coming months.