![These 3 Powerhouse Stocks Drive 17.2% of the S&P 500's Gains](https://cdn.newsserve.net/ONPglobe256.png)
These 3 Powerhouse Stocks Drive 17.2% of the S&P 500's Gains
A handful of trillion-dollar stocks can make a big difference to the S&P 500 market index with a fairly small stock price move. Here's how it works, and how you can tap into the right index-tracking ideas.
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