Unfortunately there are no plain vanilla options on cryptos at the moment.

Perhaps you can find a partner for this deal without an exchange.

Post more info here. E.g. how many bitcoins would you like to secure?
What is the premium you're willing to offer the contract writer?
You need to find someone with enough bitcoins to write a covered call option and the seller will probably be less bullish than you on the price of BTC/USD on Jan 2015.


I'm not sure but I think Mastercoin mentioned they could enable such contracts on their platform but I havent seen any concrete evidence for that.