OTC is the acronym that is used for Over-The-Counter (also known as off-exchange trading)
Within the cryptocurrency and digital asset industry, “Over The Counter” is a method to purchase large quantities of an asset without having to impact its open market price and without letting the general public know about the transaction happening.
Within traditional markets, OTC trades are typically conducted between two parties (without the involvement of an exchange) and facilitate the exchange of assets which may not be listed elsewhere.