Apple announced that it sold over 9 million iPhones during the opening weekend of sales. This is much better than analysts expected. Analysts were forecasting 5 million at the low end, and 7.75 million at the high end. The stock is up ~6% on the news. Last year Apple sold 5 million iPhone 5s during the opening weekend, so this is a huge increase. The new iPhone drew huge, enthusiastic crowds and long lines when it was released last Friday, despite the fact that there were no external changes to the device. Part of the reason there were big lines...