What happened: ServiceNow (NOW) stock plunged 17% in early trading on Thursday, fueling a broader sell- off across software stocks. Other software stocks, including Salesforce (CRM), Oracle (ORCL), and Adobe (ADBE), also traded lower. What's behind the move: The enterprise software company met first quarter earnings expectations but said the Middle East conflict delayed some subscription sales. Subscription revenue for the first three months of the year jumped 22% to $3.67 billion. That expansion would have ...