Nvidia, Hershey, Supermicro, and More [Video]

U.S. equities fell at midday as sliding tech shares slowed the recent record-setting stock runup. The Dow Jones Industrial Average, S&P 500, and Nasdaq were all lower.

Nvidia (NVDA) shares dropped when Chinese officials began an investigation of the chipmaker for possible monopolistic practices.

Shares of Omnicom Group (OMC) slid after the advertising giant announced it was purchasing rival Interpublic Group (IPG) for $13 billion, creating the largest ad conglomerate. Interpublic Group shares took off.

Comcast (CMCSA) shares sank as the cable and broadcast company said it expects to lose more than 100,000 broadband subscribers in the current quarter.

Hershey (HSY) was the best-performing stock in the S&P 500 on a report Mondelez International (MDLZ) was considering acquiring the chocolate maker. Mondelez shares tumbled.

Shares of Super Micro Computer, or Supermicro (SMCI), gained after the troubled server maker reported that the …