What insights does the emergence of AI applications in the US stock market bring to A-shares? Driven by the unexpected performance in Q3 2024 and the expectation of AI empowerment, the stock price of US listed company AppLovin surged by 72% to $290 in the last two trading days of last week, and its market value once exceeded the $100 billion mark. The cumulative increase of the stock since the beginning of the year has reached 627%, far exceeding Nvidia's 206% increase during the same period.