As markets grapple with the U.S. and Israel joint attack on Iran, Diane King Hall turns to stock movers kicking off the new trading week. CrowdStrike's (CWRD) upgrade from Piper Sandler signals what the firm calls a "best in class" cybersecurity platform that didn't deserve a part in the software sell-off. Diane points to a Novo Nordisk (NVO) downgrade from Goldman Sachs and Berkshire Hathaway's (BRK/B) earnings hitting those stocks.