Sarepta Therapeutics (SRPT) sold off more than 40% after suspending its Elevidys Duchenne muscular dystrophy drug, which was linked to two fatal liver failure cases. Diane King Hall break takes a closer look into the report. She later turns to an upgrade Cisco (CSCO) got from Deutsche Bank on A.I. optimism, along with news on Roku Inc. (ROKU) integrating Amazon (AMZN) ads with its platform.