The listing is the process after which the crypto currency starts to trade on a certain exchange. For example, the news headline "HitBTC listing PKT" means that the crypto-exchangeHitBTC starts trading PKT tokens.
Tokens most often appear as a result of a successful ICO . Investors buy new coins with the prospect of selling them for a higher price. A listing of crypto currency can increase its value by 25% or even more. Therefore, owners of new tokens usually look forward to the release of their coins on the exchange.
Listing occurs if the developers of crypts can prove the usefulness, security and liquidity of their project. Low-level exchanges place new coins for free. Large and reliable exchanges have a high rates and complex mechanism of listing .