These 20 US companies, accounting for 29% of the S&P 500, contributed to a 7.08% growth in the index since the beginning of the year. The remaining 480 companies, accounting for 71% of the index, only added 0.4% to the index’s growth.
The greatest contribution to the growth of the American market was made by Apple, which drove the S&P 500 up by 1.49%.