I'm still holding a small TWTR position from back in the day. Just added about 50% to it post market around 9-10% down. Do I think there's a real business here? No, I don't, and I don't care. I play movements and buy and flip. There's always going to be some business here to be had and I assume that it'll recover a little and eventually there'll be some sort of buyout rumour and I can make 10-15% on it. I don't care whether it's profitable or not, it's just a flip.
Sold off about 1/3 of my AAPL position at 101.5 today, mostly all stuff I bought at Brexit so I think around 92-94 if I remember correctly. I hope and expect Apple will eventually do the 110-130 range but for now I've trimmed and expect short term it'll come back down to that 95 mark more or less and I'll buy back in.