pre_text: 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 .
post_text: we do not currently hedge against equity price risk . equity investments are assessed for other-than- temporary impairment on a quarterly basis. .
table: (in millions) CostBasis FairValue CarryingValue UnrealizedGain,Net of Tax
table: BM&FBOVESPA S.A. $262.9 $690.6 $690.6 $271.4
table: Bolsa Mexicana de Valores, S.A.B. de C.V. 17.3 29.3 29.3 7.6
table: IMAREX ASA — 1.8 1.8 1.1
question: Analyse this data from a financial earnings document. what is the unrealized gain pre-tex for bolsa mexicana de valores?