With this strong gap up, it might be time to consider some hedging strategies. This is, of course, assuming that you had the fortitude to pick up some long exposure on the strong move to the downside.
I tried to explain this strategy during my panel at the Trader's Expo in LA, but it appeared that I was talking too fast, so I will try and explain the idea in better detail.
Eyeballing a chart of the SPX, it appears that we have broken out of a range of 1040-1100. If this breakout fails and we rotate lower, there's a chance we could get back in that range and chop around a bit for July.
So we could look for a hedge trade on a pullback in the markets, but not a crash-- to structure risk around this thesis, consider an out of the money put butterfly.
A butterfly is where you sell 2 contracts and then buy the "wings"-- it's essentially a combination of two verticals, with the short strike being the same.
So to trade on our thesis, we could look at a 1100/1075/1050 put butterfly. This is where you sell 2 1075 puts, and then buy the wings at 1100 and 1050. You make money if, by July expiration, we drop back into that range. It's currently being traded for 2.40
This kind of trade is a relatively cheap way of getting insurance on a downmove, but not a crash. You'd be risking 2.40 to make on average 1k, so it's about a 4:1 risk/reward trade.