In the early 1990s, General Electric ranked first for a long time; In 1999, General Electric was surpassed by Microsoft, and in the following years, the two almost took turns in feng shui; In 2005, the soaring oil prices and enthusiasm in the energy sector led ExxonMobil to dominate the charts for seven consecutive years; Until the era of smartphones, Apple embarked on its own "dynasty mode". During this period, Microsoft briefly surpassed Apple to the throne in 2019 and 2020, and now in the era of AI, the competition between the two seems to be intensifying.