subject to fluctuation and , consequently , the amount realized in the subsequent sale of an investment may differ significantly from its current reported value .fluctuations in the market price of a security may result from perceived changes in the underlying economic characteristics of the issuer , the relative price of alternative investments and general market conditions .the table below summarizes equity investments that are subject to equity price fluctuations at december 31 , 2012 .equity investments are included in other assets in our consolidated balance sheets .( in millions ) carrying unrealized net of tax . ( in millions )                            | costbasis | fairvalue | carryingvalue | unrealizedgainnet of tax
bm&fbovespa s.a .                          | $ 262.9   | $ 690.6   | $ 690.6       | $ 271.4                 
bolsa mexicana de valores s.a.b . de c.v . | 17.3      | 29.3      | 29.3          | 7.6                     
imarex asa                                 | 2014      | 1.8       | 1.8           | 1.1                      we do not currently hedge against equity price risk .equity investments are assessed for other-than- temporary impairment on a quarterly basis. .
Question: in 2012, what was the total combined amount of the fair value and the cost basis for the the bm&fbovespa s.a .?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
subject to fluctuation and , consequently , the amount realized in the subsequent sale of an investment may differ significantly from its current reported value .fluctuations in the market price of a security may result from perceived changes in the underlying economic characteristics of the issuer , the relative price of alternative investments and general market conditions .the table below summarizes equity investments that are subject to equity price fluctuations at december 31 , 2012 .equity investments are included in other assets in our consolidated balance sheets .( in millions ) carrying unrealized net of tax . ( in millions )                            | costbasis | fairvalue | carryingvalue | unrealizedgainnet of tax
bm&fbovespa s.a .                          | $ 262.9   | $ 690.6   | $ 690.6       | $ 271.4                 
bolsa mexicana de valores s.a.b . de c.v . | 17.3      | 29.3      | 29.3          | 7.6                     
imarex asa                                 | 2014      | 1.8       | 1.8           | 1.1                      we do not currently hedge against equity price risk .equity investments are assessed for other-than- temporary impairment on a quarterly basis. .
Question: in 2012, what was the total combined amount of the fair value and the cost basis for the the bm&fbovespa s.a .?
