World Liberty's $USD1 is Now the 4th Largest Stablecoin

USD1 Crosses $4.77 Billion, Clinches Fourth Place

@worldlibertyfi's $USD1 has reached a market cap of $4.771 billion, securing its position as the fourth largest dollar-backed stablecoin in circulation. The milestone puts it ahead of a crowded mid-tier field and just behind the three stablecoins that have long dominated the sector: Tether's $USDT, Circle's $USDC, and Sky's $USDS.

USD1 claimed fourth place with a $4.801 billion market cap and a 6.20% weekly expansion, the single strongest performance among the top five by a wide margin. Tether's $USDT held a $190 billion market cap, more than double second-place $USDC, according to CoinMarketCap data as of May 13, 2026. Third place belongs to Sky's $USDS at $8.861 billion.

A Rapid Ascent Built on Institutional Deals

Launched on Ethereum and BNB Chain in March 2025, $USD1 reached a market capitalization above $4 billion by April 2026, making it one of the fastest-growing fiat-backed stablecoins of the year. A $2 billion investment by Abu Dhabi-based MGX into Binance was settled using $USD1 as the official stablecoin, placing the token at the center of what became the largest stablecoin-settled transaction on record.

Binance also announced it would convert all collateral assets backing Binance-Peg BUSD into $USD1 at a 1:1 ratio, making the token an integral part of the exchange's updated collateral structure. On the reserves side, $USD1 is backed by cash and short-duration US Treasury bills, with reserves managed by BlackRock and custodied by BitGo Trust Company.

In mid-May, the total market cap of stablecoins hit a new high of $323 billion , a market that remains overwhelmingly dollar-based, with the ECB noting that around 99% of all stablecoin supply in circulation is US dollar-denominated. Within that landscape, $USD1's rise from zero to a top-five position in little over a year stands out, though questions around governance transparency and reserve attestation consistency remain open points for observers tracking the project's next phase.

Sources:
BitRss: Top 5 Stablecoins Near 90% Grip on $323B Sector (May 2026)
The Motley Fool: Largest and Most Popular Stablecoins in 2026
Stablecoin Insider: WLFI USD1 Q1 2026 Report