what if...what if on the NASDAQ there is minimal volume (17,796 shares at the time of writing), and lots of Canadian volume (147,800) that is primarily "sell".
Share price gets pushed down quickly.
Triggered are stop losses and margin calls, pushing shares for sale into the market.
The folks who sold initially, pushing the price down, then buy in to harvest the results of the stop losses and margin calls.
That may be what is going on here. Not illegal, but folks should be aware of this practice, and perhaps should manage their stop losses with this in mind. For margin calls... next time, be aware of this practice and build in a larger buffer for your margin calculations.