PrimeBit contracts work both ways. You can not only BUY any of the assets listed on our exchange, but you can also SELL it expecting the price of BTCUSD, LTCUSD or ETHUSD to go down. You profit from each.
If you assume that the price will go up you may open a long (buy) order. If you think the price will go down you may open a short (sell) order.