A.M. Update

S&P futures are up +0.9% and trading well above $4200, while NASDAQ-100 futures are up a whopping +2.25% after Nvidia (NVDA +28.75% in pre-market) reported blowout earnings. The Dow (-0.03%) is just under unchanged and Russell 2000 futures are up just 0.07%. Debt ceiling uncertainty is keeping  the broader market in check. Fitch Ratings put…