![Amazon surges, leading gains in the S&P 500 after a 'record-breaking' holiday season (AMZN) | Markets Insider Amazon surges, leading gains in the S&P 500 after a 'record-breaking' holiday season (AMZN) | Markets Insider](https://static4.businessinsider.com/image/5e04e1a7855cc24280243e52-1272/screen-shot-2019-12-26-at-103551-am.png)
Amazon surges, leading gains in the S&P 500 after a 'record-breaking' holiday season (AMZN) | Markets Insider
![Stock market today: S&P 500 and Nasdaq close at records again as Salesforce sparks massive tech rally Stock market today: S&P 500 and Nasdaq close at records again as Salesforce sparks massive tech rally](https://image.cnbcfm.com/api/v1/image/106679346-1598472430372-a_img_10_57_29_2017655_1000-1598472181038.jpg?v=1598472450)
Stock market today: S&P 500 and Nasdaq close at records again as Salesforce sparks massive tech rally
With Jeff Bezos at helm, Amazon's stock performance has made the S&P 500 look like a flat line - MarketWatch
![Apple, Microsoft, Amazon, Google And Facebook Make Up A Record Chunk Of The S&P 500. Here's Why That Might Be Dangerous Apple, Microsoft, Amazon, Google And Facebook Make Up A Record Chunk Of The S&P 500. Here's Why That Might Be Dangerous](https://thumbor.forbes.com/thumbor/fit-in/1200x0/filters%3Aformat%28jpg%29/https%3A%2F%2Fspecials-images.forbesimg.com%2Fimageserve%2F5f1b235cb2b01c84351bc561%2F0x0.jpg)
Apple, Microsoft, Amazon, Google And Facebook Make Up A Record Chunk Of The S&P 500. Here's Why That Might Be Dangerous
![5 companies now make up 20% of the S&P 500. Here's why Goldman Sachs says that's a bad signal for future market returns. (MSFT, AAPL, AMZN, GOOGL, FB) | Markets Insider 5 companies now make up 20% of the S&P 500. Here's why Goldman Sachs says that's a bad signal for future market returns. (MSFT, AAPL, AMZN, GOOGL, FB) | Markets Insider](https://static2.businessinsider.com/image/5ea6d29138bf2305316562d3-462/market-concentration-goldman.png)
5 companies now make up 20% of the S&P 500. Here's why Goldman Sachs says that's a bad signal for future market returns. (MSFT, AAPL, AMZN, GOOGL, FB) | Markets Insider
![S&P 500 trading near record highs for three sessions as all eyes on inflation data - The Financial Express S&P 500 trading near record highs for three sessions as all eyes on inflation data - The Financial Express](https://images.financialexpress.com/2021/06/SPDR-S_P-500-ETF-5-things-to-know-before-investing.jpg)
S&P 500 trading near record highs for three sessions as all eyes on inflation data - The Financial Express
![Stock market rally: Amazon, Microsoft, other Seattle companies bounce back from March lows - GeekWire Stock market rally: Amazon, Microsoft, other Seattle companies bounce back from March lows - GeekWire](https://cdn.geekwire.com/wp-content/uploads/2020/06/Screen-Shot-2020-06-08-at-2.52.46-PM.png)