For years markets have shown unusual growth patterns. The S&P 500 (SNPINDEX: ^GSPC) has risen 77% over three years while the Nasdaq Composite (NASDAQINDEX: ^IXIC) has surged 94% during this period.
Technological advancements particularly AI growth have significantly increased valuations. Several major companies now control a larger market share than any period since the dot-com era including recent tech giants.
Unprecedented Market Concentration
According to FactSet Research’s historical data the S&P 500’s top 10 holdings represented approximately 23% of index value in 2000. Modern analysis reveals these top positions now control
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