The GENIUS Act, signed into law by President Donald Trump on July 18, has catalyzed a significant $18 billion growth in the stablecoin market within a month. This legislation establishes a federal framework for stablecoin regulation in the U.S., resulting in the global stablecoin supply increasing from $260 billion to over $278 billion by August 21. The Act requires payment stablecoins to be backed by low-risk assets and introduces a tiered oversight regime. Tether's USDT and Ethena's USDE have notably benefited, with USDT alone adding over $7 billion to its supply. The Act has received commendation from industry leaders, including Circle's CEO Jeremy Allaire, and is anticipated to further stimulate growth in the stablecoin sector.