Citibank forecasts that the supply of stablecoins could reach between $2 trillion and $4 trillion by 2030, driven by their transition from speculative assets to practical financial tools. In 2025 alone, stablecoin supply grew over 50%, with USDT leading the market at 60.75% share. This growth is fueled by increasing institutional adoption and the integration of stablecoins into commerce and real-world activities. The report highlights that stablecoins are reshaping digital finance, enhancing cross-border payments, and providing access to frontier markets. Citibank also predicts that bank tokens may surpass stablecoins by 2030, indicating a significant shift in traditional finance. The rapid expansion is supported by blockchain infrastructure providers like Codex, which facilitate the growing issuance volumes, now at $280 billion. This trend reflects a deeper integration of digital assets into everyday financial activities, marking a pivotal moment for blockchain technology.