Update (1120ET): After collapsing earlier, various heavily-shorted stocks are soaring off the lows after Robinhood lifted trading restrictions, now allowing clients to buy up to 100 shares of GameStop. The brokerage also raised the limits on AMC Entertainment, Express and a few of the other five restricted stocks. Koss, BlackBerry and Genius Brands are no longer being restricted.

And that has sent names like GME soaring (halted up 85% from the lows)...