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<h2 id="usd1-crosses-4-77-billion-clinches-fourth-place">USD1 Crosses $4.77 Billion, Clinches Fourth Place</h2>
<p><a href="https://x.com/worldlibertyfi" rel="noopener noreferrer nofollow">@worldlibertyfi</a>'s <a href="https://x.com/search?q=%24USD&amp;src=cashtag_click" rel="noopener noreferrer nofollow">$USD</a>1 has reached a market cap of $4.771 billion, securing its position as the fourth largest dollar-backed stablecoin in circulation. The milestone puts it ahead of a crowded mid-tier field and just behind the three stablecoins that have long dominated the sector: Tether's <a href="https://x.com/search?q=%24USDT&amp;src=cashtag_click" rel="noopener noreferrer nofollow">$USDT</a>, Circle's <a href="https://x.com/search?q=%24USDC&amp;src=cashtag_click" rel="noopener noreferrer nofollow">$USDC</a>, and Sky's <a href="https://x.com/search?q=%24USDS&amp;src=cashtag_click" rel="noopener noreferrer nofollow">$USDS</a>.</p>
<p>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.</p>
<h2 id="a-rapid-ascent-built-on-institutional-deals">A Rapid Ascent Built on Institutional Deals</h2>
<p>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.</p>
<p>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.</p>
<p>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.</p>
<p><b>Sources:</b><br><a href="https://bitrss.com/top-5-stablecoins-near-90-grip-on-323b-sector-213643" rel="noopener noreferrer nofollow">BitRss: Top 5 Stablecoins Near 90% Grip on $323B Sector (May 2026)</a><br><a href="https://www.fool.com/research/largest-stablecoins/" rel="noopener noreferrer nofollow">The Motley Fool: Largest and Most Popular Stablecoins in 2026</a><br><a href="https://stablecoininsider.org/usd1-q1-2026-stablecoin-report/" rel="noopener noreferrer nofollow">Stablecoin Insider: WLFI USD1 Q1 2026 Report</a></p>

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

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