stock performance graph : the graph below shows the cumulative total shareholder return assuming the investment of $ 100 , on december 31 , 2013 , and the reinvestment of dividends thereafter , if any , in the company 2019s common stock versus the standard and poor 2019s s&p 500 retail index ( 201cs&p 500 retail index 201d ) and the standard and poor 2019s s&p 500 index ( 201cs&p 500 201d ) . .
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December 31,
Company/Index 2013 2014 2015 2016 2017 2018
O’Reilly Automotive, Inc. $100 $150 $197 $216 $187 $268
S&P 500 Retail Index 100 110 137 143 184 208
S&P 500 $100 $111 $111 $121 $145 $136
company/index december 31 , 2013 december 31 , 2014 december 31 , 2015 december 31 , 2016 december 31 , 2017 december 31 , 2018
o 2019reilly automotive inc . $ 100 $ 150 $ 197 $ 216 $ 187 $ 268
s&p 500 retail index 100 110 137 143 184 208
s&p 500 $ 100 $ 111 $ 111 $ 121 $ 145 $ 136
what is the roi of an investment in s&p500 from 2013 to 2017?