I think the best way is to hold it in your bitcoin wallet and make at least a monitoring of exchange rate in buying and selling. Just holding the bitcoin can have a higher returns if it sell in a higher price.
The best to store my bitcoin is blockchain wallet because I do not trust any other wallet due to the security and authentication. For me only blockchain is trustable and reliable. Keep your bitocins in blockchain wallet and swait for some time and do not use or spend them if you do not need and when the price go up more then you can use or sell your bitcoin using your blockchain wallet.