The dominance of the US stock market has reached unprecedented levels. As of 2024, the market capitalization of the US stock market accounts for almost 50% of the global market cap, a significant increase from 30% in 2009, according to Apollo's Slok. Additionally, the US represents 64% of the All Country World Index (ACWI). The technology sector's weight in the S&P 500 has hit approximately 42% in October, the highest on record, according to WisdomTree, compared to 32% during the 2000 Dot-Com Bubble peak. The market capitalization of the 10 largest US stocks now makes up over 13% of the global stock market value, surpassing the 9.9% peak seen during the Dot-Com Bubble in March 2000. GS notes that US stocks as a percentage of total world stocks is increasing.