Apple typically releases upgraded iPhone models once a year. The releases usually occur in the fall, with September being the most common month for new iPhone announcements and releases. Occasionally, Apple has also introduced new iPhone models in the spring, particularly for special editions or updates to existing models.
Apple's market value grew significantly over 12 years, rising from $3 billion to $600 billion due to the success of new devices like the iPhone and a strong user base. This growth was also driven by consistent improvements in each iPhone model, such as increased speed, battery life, and lighter designs, which appealed to consumers and maintained high price points.
From May 1, 2012, to today, Apple's stock price on a split-adjusted basis has seen significant growth. A $1,000 investment in Apple shares at that time would be worth $9,824.80 today, reflecting an increase of 882.5%. This performance has outpaced the SPDR S&P 500 ETF Trust, which has returned 284.2% over the same period.