The U.S. stock market has reached unprecedented heights, accounting for 74% of the MSCI world market capitalization, a record high that is three times larger than Europe and Japan combined. This dominance is reflected in the U.S. stocks' weighting of 73% in the MSCI World Index, the highest ever recorded. Foreign investments in U.S. stocks have also surged, with allocations reaching approximately 60%, marking a 15 percentage point increase over the past four years and surpassing levels seen during the 2000 Dot-com bubble. Additionally, U.S. leveraged ETF assets under management have hit around $120 billion in November, doubling since 2022, as market speculation rises. The S&P 500 is on track for its best outperformance of European stocks in 48 years, with a year-to-date return of 26% compared to just 6% for the Euro Stoxx 600. Since 2020, U.S. equity funds have attracted $1.09 trillion in inflows, the highest for any five-year period in history, nearly five times more than Europe, Japan, and emerging markets combined.