It's painful to read questions like this. Let us assume that we knew the answer to your question: this would freeze all of the BTC sales. Why? Because nobody is going to go out of their way to lose money on purpose, knowing that the prices are dropping. Therefore nobody would buy and the prices would remain stationary.

For future reference, before you spend a cent on something you should learn what it is you are dealing with; if you don't, your possible BTC loss is going to be the least of your worries.