biotechs are the worst. better to wait until the approvals. if its a good drug, the stock will continue to soar. I try to only buy biotechs when they're $2. just sold out of cldx due to the worry of this type of thing happening.
sorry if you are long and getting hurt. it is again only money and money can be earned or gained again unlike losing an arm or having stage 4 colon cancer so please keep that in perspective. all stocks are a gamble; some with more risk than others.
Don't jump. I do think this will pop back. You will make it up in other ways hopefully. I was not expecting this but I think the Prosensa data has caused the FDA to doubt everything. It is not what we had hoped for. I feel horrible for all of us longs but I feel even worse for the families and boys.