U.S. pharmaceutical stocks fell premarket, with Novo Nordisk (NVO. N) down 5.25%, AbbVie (ABBV. N) down 4.12%, AstraZeneca (AZN. O) down 3.8%, Novartis (NVS. N) down 3.7% and Gilead Science (GILD. O) down 3.46%. Trump has announced that he will sign an executive order to immediately reduce drug prices by 30% -80%.