Well demand is the most important things that could drive the price of cryptocurrency, a coin without demands would make the coins useless and worthless. Supply is good for developments of price the more scarce of the coins the more valuable the coins is but still demands is the most important thing than supply.
supply and demand are unseparate thing from any market.equilibrium between supply and demand could make cryptocurrency price stable.but that was not expected by investor.they want difference between supply and demand so they could take opportunity to gain profit from it.