Golden Finance reported that five of the Big Seven have announced results so far, Amazon is scheduled to announce on Thursday, and Nvidia is expected to announce it later this month. The Big Seven boosted earnings growth and stock returns on the S&P 500, which accounted for about one-third of the benchmark index. More than half of the index's gains have been from these businesses over the past two years, but their profit growth is slowing as spending grows. Judging from the forward price-to-earnings ratio, the Big Seven is 40% premium over the S&P 500, so these concerns pose a threat to their high valuation. This premium level is already narrowing, below the 70% peak in 2023.