Wall St ends lower for the day and week as chip selloff broadens

STORY: Wall Street ended the week with another down day on Friday, as the Dow dropped more than three-quarters of a percent, the S&P 500 shed 1% and the Nasdaq lost 1.4%.All three indexes also posted weekly losses.Semiconductor shares initially led the selloff, which broadened as the session progressed.The Philadelphia Semiconductor Index, while still up about 65% year-to-date, logged its steepest weekly loss in over a year this week, and has tumbled nearly 18% so far in July. Eric Lynch, managing director & co-portfolio manager at Suncoast Equity Management, said the decline reflects investor jitters over billions in AI-related spending."You're seeing just continued consternation surrounding, 'Hey, what's the ETA on this return on investment?' Right? And when TSMC [Taiwan Semiconductor Manufacturing Company], the fab [fabrication] company, reported this week, they said, "Look, things are great, but we're going to be building 15% even higher CapEx than we guided for, and our revenues are going to go up not quite as much as that,' in terms of the increase in guidance. So investors were concerned. And so it's probably going to be really important to see what the hyperscalers do this earnings season. Microsoft, Google, Amazon - are they seeing revenues that are actually in line or, ahead of, their CapEx, or not?”:: NetflixElsewhere in the market, shares of Netflix tumbled more than 7% after the streaming giant's weaker-than-expected earnings forecast, raising doubts about the sustainability of the content growth momentum.Shares of Uber dropped 2% after the ridesharing service announced it would acquire Germany's Delivery Hero in a deal worth nearly $15 billion.:: Intuitive Surgical And shares of Intuitive Surgical plunged 14% after the company maintained its global growth forecast for procedures performed with its da Vinci surgical robots, and warned that changes to some insurance plans could hurt demand.