A synthetic dollar with a buffer
USDf is a token issued by Falcon Digital Limited, a company in the British Virgin Islands trading as Falcon Finance. It aims to stay at one US dollar without dollars in a bank behind it. Falcon takes stablecoins, bitcoin, ether and dozens of other coins, plus some tokenised gold, shares and Treasury funds, and mints USDf against them. Stablecoins mint one for one; everything else mints with a buffer, so the collateral is worth more than the USDf. Falcon's documents say the non-stablecoin collateral is run in "delta-neutral" strategies: held alongside short futures of the same size, so its dollar value doesn't follow the price.
Falcon's whitepaper is written by Andrei Grachev, also a managing partner of the crypto trading firm DWF Labs, who signed its April 2026 reserves report. USDf opened to the public in April 2025 after a closed beta, passed 2 B in late 2025, and stood at 1.63 B at the end of April 2026. On October 1, 2026 the Ethereum contract's totalSupply was 1.213 B.