RE:Wednesday's late afternoon trading actionI started following recently. News was good (lots of partnerships) but surprised as it keeps dropping. I know the short interest increased as well in November (https://www.financialmagazin.com/shopify-class-a-nyseshop-sellers-increased-by-22-48-their-shorts/).
I'm not sure if they know something is coming up that we don't know about. All news has been positive so far!
Amazon did have their own flatform for shopping.. .and then killed it and recommended clients to Shopify. It got a nice 25% (or thereabouts) bump then to near high 40's.
I suspect it may be insider selling from the lock-up period. It will cool down in next 6 months.