Gartner (NYSE: IT) stock surged this week after the information services specialist reported better-than-expected quarterly results. The company's share price climbed 22.9% in the week amid the backdrop of a 3.6% gain for the S&P 500 and a 5.2% gain for the Nasdaq Composite. Gartner's…This story appeared on finance.yahoo.com , 2026-08-09 16:33:16.