Many newbies often confuse the functional positioning of CoinMarketCap, and it needs to be clarified here: CoinMarketCap is essentially a data market platform, not an exchange, and you cannot directly buy or sell or trade encryption assets on CMC. Similarly, the platform does not support token withdrawal operations. The Portfolio feature is merely a market tracking tool, which helps users monitor their holdings, but it is not a real encryption wallet and cannot store your assets. To conduct trading and asset management, you still need to go to a legitimate exchange.