In the context of this series of interconnected finance-related queries and the additional information provided by the pretext, table data, and posttext from a company's financial filings, please provide a response to the final question. This may require extracting information from the context and performing mathematical calculations. Please take into account the information provided in the preceding questions and their answers when formulating your response:
Context: table of contents performance graph the following performance graph shows the cumulative total return to a holder of the company 2019s common stock , assuming dividend reinvestment , compared with the cumulative total return , assuming dividend reinvestment , of the standard & poor ( "s&p" ) 500 index and the dow jones us financials index during the period from december 31 , 2010 through december 31 , 2015. . <table class='wikitable'><tr><td>1</td><td></td><td>12/10</td><td>12/11</td><td>12/12</td><td>12/13</td><td>12/14</td><td>12/15</td></tr><tr><td>2</td><td>e*trade financial corporation</td><td>100.00</td><td>49.75</td><td>55.94</td><td>122.75</td><td>151.59</td><td>185.25</td></tr><tr><td>3</td><td>s&p 500 index</td><td>100.00</td><td>102.11</td><td>118.45</td><td>156.82</td><td>178.29</td><td>180.75</td></tr><tr><td>4</td><td>dow jones us financials index</td><td>100.00</td><td>87.16</td><td>110.56</td><td>148.39</td><td>170.04</td><td>170.19</td></tr></table> .
Conversations: 
q0: what is the change in the value of an investment in e*trade financial corporation from 2010 to 2015? 85.25
Question: what return does this represent?
Answer: