On the eve of its education-oriented PR event in New York City tomorrow and less than a week before its fiscal first-quarter earnings call with analysts, Apple stock closed at an all-time high of $429.11 at the end of trading on NASDAQ today. The stock's price had gone as high as $429.47 during the day but fell slightly before the closing bell, still a gain of just over one percent. Analysts believe the company will report a record holiday quarter.