apyUSD is a yield-bearing vault token issued by the Apyx protocol on Ethereum. It follows the ERC-4626 standard and wraps apxUSD, a USD-denominated stablecoin backed by preferred equity shares from Digital Asset Treasury companies and separately listed on CoinGecko. Users deposit apxUSD into the Apyx yield vault and receive apyUSD in return. The vault accumulates cash dividends paid by DAT preferr…