World shares are mixed after Wall Street's AI-related losses, while oil prices jump

World shares were mixed on Friday while oil prices hovered at their highest levels since May on worries about the war with Iran.Brent crude, the international standard, gained 0.8% to $114.02 per barrel. U.S. benchmark crude oil added 1.1% to $100.60 per barrel.In early European trading, Germany's DAX lost 0.4%, while the CAC 40 in Paris shed 0.6% to 7,765.74. Britain's FTSE 100 declined 0.4% to 10,685.86.Some Asian markets bounced back from early losses.In Asia, Tokyo's Nikkei 225 lost 0.3% to 62,693.16, while the Kospi in South Korea recovered from an early retreat, gaining 0.3% to close at 5,550.30.Hong Kong's Hang Seng climbed 0.7% to 23,093.37 and the Shanghai Composite index added 0.9% to 3,690.48.In Australia, the S&P/ASX 200 was nearly unchanged at 8,795.20.On Thursday, the S&P 500 fell 1.2% for its worst day since July, while the Nasdaq composite tumbled 2.6%. Weakness for tech stocks was so overwhelming that it masked strength for the rest of the U.S. market, where the majori