My favorite stat (though depressing as I clearly drag down the average):
~1000 accounts signed up for portfolio margining, and I think I heard approx 150MM from the CFO but TP backed off and said over 100MM under PM.
THe one bit of Q3 data leaked.... 2 hedge funds signed up for Prime, with a pipeline of 10 so conversions expected. (Well, the 2 signed up may have been Q2 but the pipeline sounded like a leak as TP stopped himself.)
And of course, my favorite comment from TP: he's never been to Vegas... he's a programmer and not a gambler.