Summary: Here's everything you need to know before the bell Thursday: Banks including Wells Fargo and PNC are expected to be among the biggest winners of the tax plan, which passed both the Senate and the House. Earnings are expected from Nike , Paychex , Conagra and more. Apple admitted to intentionally slowing down older iPhones to prevent unexpected shutdowns. U.S. stock futures and European shares traded mixed. Watch More with TheStreet: Watch: Here Is Everything You Need to Know About the Stock Market in 2018 Five of 2017's Biggest Tech Moments: Video Here Is What to Expect From the IPO Market in 2018 Kawasaki Unveils Z 900 RS Motorcycle in Time for Holidays
