Shares of Nvidia (NVDA) were hammered in trading today as traders began to question the likelihood of continued strong sales for the company. NVDA and other similar companies have done well due partially to increased sales of graphics cards which are being used in Bitcoin mining computers. However on a variety factors appear to be converging to cause analysts to have rather wide dispersion of EPS estimates. Also, the proposed GOP tax bill has catalyzed rotation out of tech stocks into banking stocks as traders anticipate better potential returns from the financial sector. Keep an eye on NVDA as more volatility is likely due to the overall uncertainties mentioned. NVDA closed down -6.78% to settle at 196.37.