s&p 500 ae index 100 132.39 150.51 152.59 170.84 208.14 s&p 500 ae materials index 100 125.60 134.28 123.03 143.56 177.79 .
stock performance graph the following graph compares the most recent five-year performance of the company 2019s common stock with ( 1 ) the standard & poor 2019s 500 ae index and ( 2 ) the standard & poor 2019s 500 ae materials index , a group of 25 companies categorized by standard & poor 2019s as active in the 201cmaterials 201d market sector . the graph assumes , in each case , an initial investment of $ 100 on december 31 , 2012 , and the reinvestment of dividends . historical prices prior to the separation of alcoa corporation from the company on november 1 , 2016 , have been adjusted to reflect the value of the separation transaction . the graph , table and related information shall not be deemed to be 201cfiled 201d with the sec , nor shall such information be incorporated by reference into future filings under the securities act of 1933 or securities exchange act of 1934 , each as amended , except to the extent that the company specifically incorporates it by reference into such filing . copyright a9 2018 standard & poor's , a division of s&p global . all rights reserved. .
what is the annualized return for the s&p 500 aematerials index during 2012 and 2017?
as of december 31 , the s&p 500 aematerials index of 2012 is 100 ; the s&p 500 aematerials index of 2013 is 125.60 ; the s&p 500 aematerials index of 2014 is 134.28 ; the s&p 500 aematerials index of 2015 is 123.03 ; the s&p 500 aematerials index of 2016 is 143.56 ; the s&p 500 aematerials index of 2017 is 177.79 ; the graph assumes , in each case , an initial investment of $ 100 on december 31 , 2012 , and the reinvestment of dividends .
as of december 31, 2012 2013 2014 2015 2016 2017
arconic inc . $ 100 $ 124.15 $ 186.02 $ 117.48 $ 99.40 $ 147.47
s&p 500 aeindex 100 132.39 150.51 152.59 170.84 208.14
s&p 500 aematerials index 100 125.60 134.28 123.03 143.56 177.79