Markets worldwide experienced a decline due to a downturn in AI stocks. The S&P 500 fell, despite most of its component stocks rising.

The Nasdaq composite and Dow Jones Industrial Average also dropped, with the latter falling 130 points. This trend began in Asia, where Samsung Electronics' stock tumbled, even after the company reported strong preliminary numbers for the second quarter.

Further details on the market decline and its potential impact are available from the source. The situation is being monitored, and investors are advised to consult the original report for more information on the current state of AI stocks and the market.