Credit Suisse shares surged 32% in opening trade, rallying as the Swiss banking giant said it will tap its central bank for 50 billion francs ($54 billion) and launching an offer to buy beaten-up debt. While the stock CH:CSGN CS did get halted for volatility and came off those highs, it demonstrated that the action helped stave off some of the pressures building around the bank, which has lost money for five consecutive quarters. Other…
