The acceleration of global economic growth has pushed many global indexes to the highest level in recent years. The NASDAQ Composite Index has a P / E of around 28 times over the last 12 months. Will the stock market of the United States collapse? Chan Kung, Anbound's chief researcher believes that from an average regression point of view, it will certainly collapse; from an economic trend point of view, it will certainly collapse; but it may not necessarily collapse now; it remains to be observed when will the stock market collapse in the future.