How much is DeFi dollars?

Excuse me, could you kindly enlighten me on the current valuation of DeFi dollars? I've been following the crypto space closely and have noticed a surge in interest surrounding decentralized finance, particularly with this particular digital asset. Understanding its market capitalization and exchange rate against other major cryptocurrencies or fiat currencies would greatly assist me in making informed decisions within my investment portfolio. Is there a reliable source or platform where I can find up-to-date information on the value of DeFi dollars?