This article focuses on the 2026 US stock buyback boom, with Goldman Sachs' latest data showing Q2 buybacks exceeding $308 billion, with an annual projection of over $1.2 trillion. The article analyzes the long-term investment value of US stocks from the perspectives of abundant corporate cash, tax reform benefits, EPS enhancement, and shareholder return culture, revealing the fundamental reasons for continued global capital inflows into US stocks and helping investors understand why to buy US s