US stocks faltered in their rebound bid on Friday, resuming a tech-led sell-off as investors weighed signals on the jobs market and the odds that the AI investment boom will pay off. The tech-heavy Nasdaq Composite (^IXIC) led the losses, falling around 0.7% in the minutes after the opening bell, following Thursday's sharp losses for US gauges. The S&P 500 (^GSPC) slid 0.5%, while the Dow Jones Industrial Average (^DJI) lost around 0.4%. Stocks are on track to close a bumpy week in the red, dragged down ...