Airlines and cruise lines rallied double digits while crude oil plunged over 17% at Wednesday's opening bell. Diane King Hall explains the price action and how earnings from Delta Airlines (DAL) added to optimism for the travel industry. As Diane notes, tech got a boost from the U.S.-Iran ceasefire, including Mag 7 giants like Nvidia (NVDA), Microsoft (MSFT), and Amazon (AMZN).