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Puts are obviously going to be more profitable. Catching the right mining stock or buying calls on such a mining stock (I have no experience with this one) could be great options too. Bitshares actually has their smart assets bitGOLD and bitSILVER so that's a nice option too if you want to save on fees.

Great call on BTS - been slowly upping my position it in for a number of reasons and this only lends more support for that

On top of the Bitshares is the only place where you can get your hands on things like https://museblockchain.com and https://zephyr.bitspark.io which are projects with great potential.