Switzerland's big three domestic banks must meet additional capital requirements by January

ZURICH (Reuters) - Switzerland's three biggest domestically focused banks -Postfinance [PFAG.UL], Raiffeisen Switzerland [RFSHW.UL] and Zuercher Kantonalbank [ZKB.UL] - must hold capital against their possible restructuring or winding up in the event of a crisis, the government said on Wednesday.The banks must meet so-called 'gone concern' capital requirements from Jan. 1, 2019, the Swiss cabinet said, adding that it would decide next year on the corresponding requirements for the country's two..