Shares of Petco Health and Wellness (WOOF) jumped 18% as the pet products retailer reported a surprise profit and raised its outlook, citing its transformation efforts. Workday (WDAY) was the worst-performing stock in the S&P 500, with shares down 9% amid concerns about subscription revenue at the provider of human resources software. Shares of Deere & Company (DE) tumbled 5% after the manufacturer of large farm and construction equipment gave a weak forecast and warned of difficult market conditions. Dell ...