Moving money around will likely continue and would come with long term gains once built with. Big faucets do large amounts each and every single day and have learned to hold because of accurate speculation between fiat money used to pair with standard rate.
Sometimes when this happen, it's good to sell when panic to have the profit and buy again when the price falls, however we don't have how to know exactly what will happen, maybe the price doesn't fall and continue rising, so, if we want to buy that currency again, we will need to buy for the expensive price, making our recently profit go away.
That is what is happening now. Maybe can be a good strategy to sell BTCs for $900 and buy them again when they fall to $800 or $700, but who guarantees the price will fall again?
Be sure there isnt any valid reason to bitcoin being traded at 900 dollars, with that said its a sure bitcoin will be dumped on the next days, the only interest with bitoin at this value are for the big miners, since they can maximize their earnings.