The S&P 500 is supposed to be a broad representation of the US economy. So if you're plowing money into an index fund, you might think you're doing a good job of diversifying. You'd be wrong. Apple, Microsoft and other big techs dominate the index.Original article
The S&P 500 is truly the S&P 5. Giant tech dominates the index
The S&P 500 is meant to be a vast illustration of the United States financial system. So in case you are plowing cash into an index fund, you may suppose you are doing a excellent process of diversifying. You would be flawed. Apple, Microsoft and different large techs dominate the index.