On August 18, the three major stock market indexes in the United States were mixed. Nasdaq and Standard & Poor's 500 both rose, but only Dow Jones closed down. Both the Nasdaq index and the Standard & Poor's 500 index hit record highs, which also made the US stock market rebound quickly after a relatively short bear market. This is mainly due to the stimulus plan of US fiscal and monetary policies. The Federal Reserve lowered interest rates to near zero and launched a quantitative easing program. On August 18, the rise of Nasdaq and Standard & Poor's 500 Index was also mainly driven by the strength of the top five technology stocks. Apple, Microsoft, Facebook, Amazon and Google all rose at the close of the day, with Amazon gaining the most, rising by 4.09% at the close. So far this year, Amazon's share price has risen by 79.26%, which is also the biggest increase among the top five technology stocks in the United States this year. Moreover, Amazon's stock market value has surpassed that of Microsoft, almost equal to that of Apple. Amazon is the largest online e-commerce company in the United States, ranking fourth in Forbes' 2020 global brand value 100 released in July this year. Today, Amazon is the online retailer with the largest variety of goods in the world and the shopping website with the largest number of users in the world. With the increasing demand for online shopping in the United States this year and Amazon's good e-commerce shopping experience, the development of its e-commerce scale still maintains a high growth, and Amazon's business scale continues to expand, which is also one of the main reasons for its stock price rise. Amazon's e-commerce, cloud computing, streaming media services and other businesses are developing well at present, and the scale is huge, which is also optimistic by some Wall Street financial and investment analysts. Laura Martin, an analyst at Needham, believes that its share price still has a lot of room to rise, and may even exceed Apple's market value, reaching a market value of 400 billion to 500 billion US dollars in the future. With Amazon's share price rising sharply this year, its founder Jeff Bezos is worth almost $200 billion. He is likely to become the richest man in the world, with $200 billion, which is not a huge wealth that ordinary people can imagine.