RE:OuchHey BrokerG,
I wish I could explain entirely, but what I saw was a couple of things: 1) Investors worried about growth tech stocks that are not generating strong profit, turning to more predictable stocks, maybe traditional dividend stocks & energy instead, and 2) a series of downgrades on the SHOP stock, a fresh one has just been announced, to $800 per share. This typically drives stocks down quickly, sometimes irrationally.
I just bought one more stock at $677, I find it's a promising price personally.