A.M. Update

S&P futures are off their 8 a.m. levels down -0.3% and are currently flat, after having garnered mostly negative responses to earnings. JPMorgan Chase (JPM) has gone against the grain with a pre-open gain, but Wells Fargo (WFC), Bank of America (BAC), UnitedHealth (UNH), and Delta Air Lines (DAL) are all showing premarket losses in…