Swiss Francs to Euro

The following is a fairly telling chart – the Swiss National Bank is holding the line at a 1.2:1 exchange rate between the Swiss Franc to Euro (i.e. the SWB is not allowing their currency to strengthen relative to the Euro):

The question of the day for all traders is: Will the Swiss Bank relent? They have an infinite amount of Swiss Francs to sell into the market for Euros, but will they want the world to hold their currency while they hold onto (presumably more) risky Euro currency?