According to past data, the stock price of Apple on the day of the iPhone announcement has fallen an average of 0.66%.According to past data, the stock price of Apple on the day of the iPhone announcement has fallen an average of 0.66%.There is a tendency for the stock price to be influenced by criticism of the lack of innovation in the new model. However, in the 60 trading days after the announcement, the stock priceincreased by an average of 2.79%.し、Furthermore, there is a tendency for the increase to accelerate after that.Specifically, within 60 days after the announcement,the stock price increased 10 times out of 14.投資家は過度に楽観視することはできないThe maximum increase rate was 20%.This increase is believed to be due to the high demand for the new iPhone continuing, despite critical reviews.