The Globe and Mail reports in its Saturday edition that United States markets lost ground on Friday. A Canadian Press dispatch to The Globe reports that in New York, the Dow Jones industrial average was down 44.51 points at 51,876.11. The S&P 500 index was down 3.47 points at 7,354.02, while the Nasdaq composite was down 60.99 points at 25,297.62. The August crude oil contract was down $2.69 at $69.23 a barrel (all figures U.S.). The price of Brent crude oil dropped 3.8 per cent to $72.60. That's lower than it was the day before the start of the Iran war. In the bond market, U.S. Treasury yields eased with oil prices. Most of the U.S. stock market rose on Friday, but declines in artificial intelligence stocks kept the market in check. After soaring to tremendous heights and leading the market for years, AI stocks have been under pressure recently because of worries their profits can't possibly keep pace with the tremendous rallies for their stock prices. Micron Technology's drop of 6.7 per cent was the heaviest weight on the U.S. market. The maker of memory for computers has been a big winner this year, with its stock roughly quadrupling, because the AI boom has created a surge of demand for its products.