If and when FB has a big pop on the open (let's say, to $50 or more), I'd like to short it. But I assume that there won't be any shares to short until some time next week. I see that there are quite a few FB structured products available for trading, mainly issued by UK and other European institutions. Most of these look like relatively complex options (eg. with knock-outs), compared to the easier to understand vanilla options that I am more familiar with (ie. calls and puts). Are you planning to trade any of these FB structured products, and if so, which ones do you plan to trade?