Key Stock Movers: Nvidia, Hershey, Supermicro Lead the Pack

U.S. equities fell at midday due to declining tech stocks, with Nvidia shares dropping amid a Chinese investigation into the company. Hershey's stock surged on reports of a potential acquisition by Mondelez, while Omnicom's shares fell after announcing a $13 billion purchase of Interpublic Group. Comcast shares declined due to expected broadband subscriber losses, and Supermicro shares rose after a Nasdaq delisting delay. Enphase Energy shares increased following a collaboration announcement. Meanwhile, oil and gold futures rose, and the U.S. dollar showed mixed performance against other currencies.