S&P 500 Falls Amid Anthropic's AI Warning
The Dow, S&P 500 and Nasdaq fall as an Anthropic AI warning unsettles tech traders and the 10-year yield reaches 5%.
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TL;DR
- •The Dow, S&P 500 and Nasdaq trade lower on September 14, 2026.
- •An AI warning from Anthropic unsettles technology traders.
- •The 10-year yield reaches the 5% threshold.
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Major US indexes retreat
The Dow, S&P 500 and Nasdaq are trading lower on Monday, September 14, 2026. The decline therefore extends across all three major US stock indexes.
The S&P 500’s decline directly affects ETFs designed to track the performance of this benchmark index.
Anthropic warning weighs on technology
Technology traders turned nervous following an artificial intelligence warning from Anthropic. The development contributed to the negative mood across the market.
The Nasdaq, which is closely associated with technology stocks, is among the indexes falling during the session. The available information does not provide a figure for the size of its decline.
The 10-year yield touches 5%
At the same time, the 10-year yield reaches 5%. The threshold is the session’s other notable development alongside concerns surrounding the technology sector.
The September 14 session therefore combines declines in major US indexes, pressure on technology stocks and a 10-year yield at the 5% level.
Key data
Written by
Quentin FosséFounder & Editor in Chief
Passive investor since 2019, passionate about UCITS ETFs and index investing. After spending too long searching for a simple tool to detect portfolio overlaps, I built etf-overlap.com. My goal: help European investors build coherent ETF portfolios without hidden concentration risks.
