Please answer the given financial question based on the context.
Context: state street corporation | 52 shareholder return performance presentation the graph presented below compares the cumulative total shareholder return on state street's common stock to the cumulative total return of the s&p 500 index , the s&p financial index and the kbw bank index over a five-year period . the cumulative total shareholder return assumes the investment of $ 100 in state street common stock and in each index on december 31 , 2012 . it also assumes reinvestment of common stock dividends . the s&p financial index is a publicly available , capitalization-weighted index , comprised of 67 of the standard & poor 2019s 500 companies , representing 27 diversified financial services companies , 23 insurance companies , and 17 banking companies . the kbw bank index is a modified cap-weighted index consisting of 24 exchange-listed stocks , representing national money center banks and leading regional institutions. .
||2012|2013|2014|2015|2016|2017|
|state street corporation|$ 100|$ 159|$ 172|$ 148|$ 178|$ 227|
|s&p 500 index|100|132|151|153|171|208|
|s&p financial index|100|136|156|154|189|230|
|kbw bank index|100|138|151|151|195|231|
.
Question: what is the roi of an investment is state street corporation from 2012 to 2015?
Answer:
0.48