In 2023, Tether, the issuer of the USDT stablecoin, surpassed the largest asset manager in the world, BlackRock, in terms of profits. What seemed improbable a few years ago is today a reality that raises questions. Indeed, this contrast between traditional finance and crypto illustrates a paradigm shift in the way investors perceive stability and profitability. While USDT dominates the stablecoin market, Tether has managed to leverage this momentum to achieve historic performance.