Tether Gold (XAU₮) has solidified its position as the leading gold-backed stablecoin, accounting for over half of the market share in this sector. As of the end of Q4 2025, Tether Gold's market capitalization has surpassed $4 billion, according to an official announcement by Tether. The stablecoin is fully backed by physical gold reserves, totaling 520,089.35 troy ounces, ensuring a 1:1 backing ratio with each XAU₮ token. The total circulating supply of XAU₮ tokens stands at 520,089.3, with a market capitalization of $2,246,458,120. Tether has sold 409,217.64 XAU₮ tokens, leaving 110,871.66 tokens available for sale. This development underscores Tether Gold's significant influence and stability in the gold-backed cryptocurrency market.