Yes stop would have went there and for anyone who might have been in that, would have had a big loss on it this morning, about a 28% loss on the open.  It really didn't matter where your stop was because of the big gap

Thanks for bringing this up because I brings up another very important point about money management I want to make.  This is why you don't put a huge % of your capital into any one stock, especially short term trade ideas. Bigger swing plays, for example if you've owned AAPL for years you could have larger % of your capital into but for general trade ideas from day to do you want to limit your exposure, esp when holding over night.  For pure day trades that I intend to exit that day I'll go a larger position because I'm selling that day. For shorter trades I'm holding for a few days or longer I'll have a smaller % maybe 5% or 10% max.  Because here's the thing guys, shit happens.  I don't care how much due diligence you do, thinks like this can and will happen eventually when you trade long enough.  You might go years without it happening but eventually one day, you will be in a stock, it will have some news out of left field and gap down 50% or 70% etc.  That stuff can and will happen and is why you never put 50% of your capital into any one short term trade etc.  So anyone who might have been in this one, sucks but you chuck it off to life, and move to next trade.  Stopping out on the open would have been about a 28% loss, but if it was only 5% of your trade capital, then 0.28 * 0.05 = 1.4% loss on total account which you can live with. Trading for a living doesn't mean you make money on every trade, but you manage your funds so that when things like this do occur it doesn't wipe you out. 

also these biotechs can do this.  I've been nailed on them on the past, been long in stock for a trade, then BOOM, they stop FDA trades and the stock gapes down 80% the next morning, just bad luck.