With perhaps just one day left in October, the Greece ETF has outpaced all nonleveraged ETFs in the hurricane-shortened month. Global X FTSE Greece 20 ETF (GREK) rallied a mind-boggling 24% in October and a whopping 68% over the past three months through Oct. 26. By contrast, iShares MSCI EAFE Index (EFA), tracking developed foreign markets, added 1.17% for the month and SPDR S&P 500 ETF (SPY) fell 1.82%. GREK has doubled off its 52-week low from