According Goldman Sachs, META, Amazon, Apple, Microsoft, Google, Tesla and Nvidia outperform S&P 500 by 34%, meanwhile the remaining 493 companies has growth just 1% in YTD 2023. So, the growth of 10% in S&P 500 is almost 100% on the shoulder of these Mega-cap stocks. Very interesting picture to define the economy.
Source: Goldman Sachs