It's one of the main reasons why all these shitcoins are a total joke. For example, Ripple, and all these premined scamcoins, create an huge supply of coins, and if someone buys just $1 USD worth, the huge premined supply will now become the marketcap at a vlue of $1 USD each.

So a shitcoin generates 100,000,000,000 tokens, someone buys $1, and now the marketcap is $100,000,000,000, it's a total joke. Coinmarketcap is so misleading to newbies that think Bitcoin has real competition. All of these shitcoins have manipulated supplies with very dodgy history behind like developers burning coins in purpose, generating them, airdropping them... it's nuts.