RE:CXR options to deal with shorts...Not much. Regulators have to start getting serious with these guys. Glad to see the US took action against the "catalyst" of this sector wide attack.
https://www.reuters.com/article/us-usa-crime-shkreli-idUSKBN0U01IM20151217 But the only real way management of CXR can show a vote of confidence for their stock is to buy on the open market like the rest of us.
At this price for example, there's no reason why insiders who truly believe in their company would not buy into it at these prices. I know buddies that are more long term will only buy at or near the lows if they see insiders buy. The bigger they see insiders buy in, the more that weights in (along with a ton of other variables) in the position they build. Our small retail group is 50/50 right now I'd say on CXR because of the lack of insider buying.
The good news is shorts have to buy so it's really just borrowed time for them. And they've pushed the main target VRX as low as it goes, at least for this run. Hopefully... ;-)
So if you are long here, don't sell. Shorts and experienced retails traders will pick up your shares.