Unclear until it's clear! This whole market has been on a steady rally since 2009 but it was never clear why over the 4 years. Weekly options ended March 20. March 22 for the rest of the stocks. ^DJGSH & ^DJGSHT index forced the group up. BAC, C, JPM, GS, etc, etc, weekly options ends Friday. Next week it's March 28th. Which ever strike prices have heavy bets, option algorithmic program trades will dodge rain drops to make most bets expire worthless.
With Greece in economic austerity and financial straights, not to mention speculation of the demise of the Euro, NM has to be trading at a discount if such speculative bets that there's no back stop from Germany, ECB and/or IMF, prove to be wrong.