cnbc.com Market update
Stocks making the biggest moves premarket: Reddit, Applied Materials, Sandisk, Wayfair & more
Check out the companies making the biggest moves premarket: Reddit — The social media platform surged 12% after S & P Dow Jones Indices said Reddit would join the S & P 500, starting Aug. 18. The company will replace AvalonBay Communities. Applied Materials — Shares lost more than 5% in premarket trading after the semiconductor manufacturing equipment …