With the shortened week because of the 4th of July I know ALOT of high income people who basically take most of this week off, because the 4th falls on Thursday. Should be very low volume trading.
My guess is sellers take off Friday. It is very unlikely we hear Adcom news by eod Wednesday or Friday as feds take off long weekend too. Those shorts who didn't see Adcom news today will be covering thru this Friday as Monday might be even more hard on them, imo.