Below is a look at the 40 largest companies in the S&P 500.  Today has been a big day for the largest companies in the world.  They’re all trading higher on the back of strong earnings reports from Alphabet (GOOGL), Microsoft (MSFT), and Amazon (AMZN).

Apple (AAPL) remains in the lead as the largest public company in the world by more than $100 billion in market cap, but GOOGL is now worth $724 billion — larger than any company not named Apple has ever been.

The 3rd, 4th, and 5th largest companies in the S&P are now all worth more than $500 billion as well.

So far in 2017, the five largest companies — all Tech related names — have added close to a trillion in market cap.  The remaining 495 stocks in the S&P 500 have added roughly 2 trillion.  This means the five largest stocks have accounted for a third of the 2017 gains in market cap for the entire S&P 500.

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