I would keep some cash in reserve, like I said what you are seeing with Etherium and Litcoin now is the money being sucked out as everybody is transferring over to jump on the Bitcoin train. Look for a jump up in either of those as bigger money starts moving back over, this will signal in most cases a drop on the horizon for BTC. You can see it if you watch all the charts, you will see a $1,000,000 sell on LTC or ETC followed seconds later by and = buy in BTC. Pretty standard affair really and something I like to see as I trade well with ETH and LTC. So I am happy to see BTC pull the money out of them. I just really want to see BTC trade sideways for a few as LTC and ETH will rocket up..