A.M. Update

S&P futures are down -0.1% and NASDAQ-100 futures -0.5% in reaction to poor earnings from the likes of SNAP (-32%) A few other big premarket downside movers are Twitter (TWTR -1.5%) and Verizon (VZ  -4.1%). Both companies reported worse-than-expected earnings this morning. To the upside, HCA (HCA  +13.8%) is making big moves after they reported better-than-expected earnings this morning….