The highest price in history was set on April 9, 215. The stock price is divided into non-ex-dividend, upper ex-dividend, lower ex-dividend, and the highest price of lower ex-dividend is 117.89 on November 5, 27, 38.12 on April 9, 215, and the upper ex-dividend is 165.8 on April 9, 215, because every year, If the right to divide is adopted, we can see from the figure below that the cost in 26 has been .