This kind of move happens all the time. Holders were tired of the stock since it was going only sideways for the last 3 months and decided to get out when the stock gapped up on the earnings release. They took their profit and ran. It didn't help that the whole stock market gapped up this morning and then sold off.
It's a growth stock that isn't growing....all the growth is in the back half of the year, supposedly.....is still in show me territory and there won't be anything more to show for 3 months....radio silence begins today.....why should everyone clamour to buy into that situation?