Twitter ($TWTR) gap down on reports that its user base growth is slowing down. On the Ichimoku chart which is hardly form, this is probably the typical post IPO selloff. Should it have a counter-trend rally, the leading kumo forms a resistance at around $56.77
I am looking at the Ichimoku Daily Chart and it shows a good setup that /ES may be hitting the resistance again.
Seems like yesterday issues with Thinkorswim (or is it TD Ameritrade?) is widespread enough to make headlines on Bloomberg. Link to Bloomberg article : Thinkorswim Clients Miss Morning Trading