In stock market the one control in the price of stocks is the country Stock Exchange, how about in crypts who regulating the price of the altcoins in the market? Who set the ceiling price of the altcoins? Who tell that this particular coins are worth of this?
At first, You have to know that this is a decentralized platform for virtual currency exchange. So there is no authority for regulating on this system. we know that every stock market is involved or regulated by a authority body but this is the totally different issue.
So far I know that there is authority body who defines the ceiling price of an altcoin. you can get informed from the particular white paper of related altcoin and then you may decide you should you do regarding investment or buying anything for the trading or saving purpose.