institutions have shorted UBNT since Q3 of 2012, thus at least 2 pts of this intraday rally is a short squeeze. As well, take a look at insider selling via SEC Form4. every insider selling big, not buying.
they can afford to sell. there's be new institutional demand coming into the stock now.
a little clumsy on the typing above... I had a look at insider sales - nothing much... what are you talking about? the Summit sales in March? that's old news.