what is the unrealized gain pre-tex for bolsa mexicana de valores?
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 | UnrealizedGain,Net 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 | — | 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. .

bmv_bolsa_gain = 29.3
bmv_cost_basis = 17.3
bmv_unrealized_gain = bmv_bolsa_gain - bmv_cost_basis
answer = bmv_unrealized_gain