If you are careful to pick charts that have a good story, then you shouldn't run into this problem very often, but it does happen... These are thin book coins, so any big player can force the price down .. So I am always ready to buy the next range lower, and then reduce my position size quickly on any bounce near my break even price.. As soon as I can get even I usualy take half my position off so I am back at a regular size and can continue working the book without effecting it.. You picked the chart because it is whippy and easy to to work... so if it suddenly spikes down, thats a good thing, not a bad thing... Buying more an a quick spike down, on a chart that has a history of whipping around is awesome.