As of 2015, the average monthly adjusted closing prices for the stock of Apple Inc. varies between $109.95 to $128.45 between the start of the month of December 2014 and February 2015. The average closing price of the stock in 2014 ranged between $69.76 to $118.46.
Historically, Apple Inc. also released dividends on its stock on a quarterly basis since Aug. 9, 2012. Between the month of August 2009 and January 2012, the average closing stock price of Apple has also increased from $22.67 to $128.45, which is an increase of just over $100. Historical data on Apple's stock also shows that as the prices of the stock increases, the overall trade volume has decreased.