Want some free money? Short gold and BTC with a several month timeline.
Trading large positions on margin with a time frame of 'several months' is not a good idea for multiple reasons.
Interest rates will eat away at your money and it is very risky to leave your position open for that long.
I'm also sure that bitcoin will go both up and down, in several months that is...
I am a sort of prophet.
lol, ok.
It's not only risky for those reasons, it's just generally risky to leave Bitcoins on exchanges long term no matter what, at least until a serious exchange like Gemini where you can trust it will not disappear overnight is available. Until then, leaving long term positions opened specially with serious amounts of Bitcoin is simply insane for my taste. Good luck tho, im sure there is big money to be made by taking such risks, but there is also tons of money to be lost, as always. Id rather hold trough it.