Odaily News MicroStrategy founder Michael Saylor said in a post on X: "MSTR is a credit default swap for more than $100 trillion of assets in the 20th century." Note: Credit default swap (CDS), also known as credit default swap, is one of the most important credit risk mitigation tools for over-the-counter transactions. It is a financial derivative product and one of the credit derivatives. It can be regarded as a default insurance for financial assets.