VTL has a 16.79M share float with 2.8M shorts. It's down 75% on bad Phase III news, not unlike MCUR was today. Might get a play on the long and the short side Monday. The low $6's could act as resistance/a top because it peaked at $6.15 after hours.
I've got my eye on CAPN. It has a 2.77M share float, so it gets downright giddy with smallest catalyst. Might see a nice move to the upside soon, followed by a same day crash. CAPN never holds spikes.