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The Dynamics of Stock Indices
This chapter explores the influence of major companies like Apple, NVIDIA, and Microsoft on the S&P 500 and examines the implications of concentrated equity in indices. It contrasts the performance of large-cap and small-cap stocks, discussing earnings growth, valuation sustainability, and the significance of pricing power in investment decisions. Additionally, the chapter critiques traditional indexing methods and reflects on the evolution of market structures and company types within key indices.