stablecoinmktcapsChart shows difference in market cap of the 3 main stablecoins (derived from circulating supply) - this should help indicate buying patterns because it shows how the market is valuing each stablecoin relative to the others. By comparing the market cap of each stablecoin, traders can get a sense of which one is currently the most popular among investors, and use that information to inform their buying decisions. Additionally, changes in the market cap of each stablecoin can also indicate changes in investor sentiment, which can be useful for predicting future price movements.