I heard in stocks, this is called shorting. But i read if you short, you could lose a huge amount of money. Could you do this with bitcoin? Example my thoughts were hey its the holidays, so most likely ppl will withdraw money and thus btc drops. So i figure around now, btc price would drop.
Even I crypto you can short your bet while your technical analysis says that the market will bearish. Bitmex is one awesome platform that I like to short my bets. You can both long and short your bets. Its easy to use.