Summary: Here's everything you need to know before Friday's opening bell: AMD said its microprocessors are susceptible to both variants of the Spectre security flaw. Walmart will close or convert 63 Sam's Club stores. Fiat Chrysler will invest $1 billion to bring production of its Ram Heavy Duty truck to the U.S. from Mexico. JPMorgan Chase & Co. posted fourth-quarter adjusted profit of $1.76 a share, higher than Wall Street forecasts. U.S. stock futures pointed toward another set of record. Watch More with TheStreet: Watch: Bitcoin Prices Are Headed to Near 0.00, Peter Schiff Says 3 Robots That Will Make Your Life Easier Norwegian Cruise Line CEO: Tax Reform Will Be Big for Us CES 2018: 4 Futuristic Motorcycle Reveals
