The non-fungible tokens (NFT) market hysteria continues in the third quarter of 2021. According to data from DappRadar, NFT sales volumes for Q3 2021 totaled $10.7 billion, up eightfold from the previous quarter. This amount was $1.3 billion in Q2 2021, up from $1.2 billion the previous quarter. The total volume of NFT sales for 2021 is estimated to be $13.2 billion. OpenSea, an NFT marketplace, reported $3.4 billion in sales in August 2021.