Nice after-market trade 3,000 shares at 4:55
That may not seem much, but it's unusual for Exro to trade at all in the US aftermarket.
Personally, I'd have to think that the stock triggered a few entirely separate algorithms that isolate stocks based on at least three different criteria yesterday.
Examples being unusual trading activity (generic),
unusual volume, percentage movers, and stocks moving on news.
Yesterday had implications below the surface of the move.
It was free advertising.
Implications that have yet to work themselves entirely into the market and that will have lingering effects.
Personally, for whatever it's worth, I'd say this stock will move nicely higher very quickly.