Stock indexes closed higher on Wall Street, adding to the all-time highs they set a day earlier. The S&P 500 added 0.2% Friday. That was the seventh straight gain for the index. The S&P 500 also closed out its ninth straight winning week, the longest such streak since 2023. Tech stocks led the way, including a 32.8% gain for Dell Technologies after the company delivered profits that blew past expectations. Dell also raised its outlook, citing powerful demand for AI computing. The Dow added 0.7%, and the Nasdaq composite rose 0.2%. European and Asian markets mostly rose. Brent crude fell 1.7%. On Friday: The S&P 500 rose 16.43 points, or 0.2%, to 7,580.06. The Dow Jones Industrial Average rose 363.49 points, or 0.7%, to 51,032.46. The Nasdaq composite rose 55.15 points, or 0.2%, to 26,972.62. The Russell 2000 index of smaller companies fell 17.23 points, or 0.6% to 2,919.34. For the week: The S&P 500 is up 106.59 points, or 1.4%. The Dow is up 452.76 points, or 0.9%.…