Alcoa (AA) inflation adjusted price, is calculated in today's money (today's value of money or today's purchasing power of money)
Alcoa (AA) nominal price, is the recorded price of Alcoa.
Alcoa inflation adjusted price end of month - May 2013

Alcoa (AA) inflation adjusted long term chart.
Alcoa (AA) historical chart, 33 years.
Alcoa inflation adjusted price end of month May 2013 - historical graph

Alcoa inflation adjusted price end of month May 2013 - Logarithmic scale chart