unregistered sales of equity securities during the past three years there have not been any unregistered sales by the company of equity securities. .
performance graph the following graph and table compares the cumulative five-year total return provided to shareholders on our class a common stock relative to the cumulative total returns of the s&p 500 index and our customized peer group . the peer group includes cboe holdings , inc. , intercontinentalexchange group , inc . and nasdaq , inc . an investment of $ 100 ( with reinvestment of all dividends ) is assumed to have been made in our class a common stock , in the peer group and the s&p 500 index on december 31 , 2012 , and its relative performance is tracked through december 31 , 2017 . comparison of 5 year cumulative total return* among cme group inc. , the s&p 500 index , and a peer group 12/12 12/13 12/14 12/15 12/16 cme group inc . s&p 500 peer group * $ 100 invested on 12/31/12 in stock or index , including reinvestment of dividends . fiscal year ending december 31 . copyright a9 2018 standard & poor 2019s , a division of s&p global . all rights reserved . the stock price performance included in this graph is not necessarily indicative of future stock price performance. .
in 2017 what was the ratio of the the cme group inc . stock perfomamce to the s&p
the cme group inc . of 2013 is $ 164.01 ; the cme group inc . of 2014 is $ 194.06 ; the cme group inc . of 2015 is $ 208.95 ; the cme group inc . of 2016 is $ 279.85 ; the cme group inc . of 2017 is $ 370.32 ; the s&p 500 of 2013 is 132.39 ; the s&p 500 of 2014 is 150.51 ; the s&p 500 of 2015 is 152.59 ; the s&p 500 of 2016 is 170.84 ; the s&p 500 of 2017 is 208.14 ;
2013 2014 2015 2016 2017
cme group inc . $ 164.01 $ 194.06 $ 208.95 $ 279.85 $ 370.32
s&p 500 132.39 150.51 152.59 170.84 208.14
peer group 176.61 187.48 219.99 249.31 323.23