Quote from carson:
Was the 7:20CST move down a fat finger? The time stamp on my TT between my 738 & 733 fills was less than 1/2 a second.
nope. it's when C started to implode. after the C deal was made public, C actually traded up. then it started to fall. then it went into a death spiral to 1.22, with BAC along for the ride, followed by everyone else to a lesser extent. ES broke spt and the stops blew it to 729 in a heartbeat.