MINYANVILLE ORIGINAL The three most active funds and stocks in pre-market trading on the NYSE were Weatherford International (NYSE:WFT)   SPDR S&P 500 ETF (NYSEARCA:SPY) Michael Kors Holdings (NYSE:KORS) as of 9:25 a.m. EST. Investors exchanged 3.38 million shares of Weatherford International which was down $1.02 or 9.38%. According to Reuters Weatherford reported a pre-tax profit $191 million for its third quarter compared to $270 million in the prior-year quarter. Revenue increased 13% to $3.82 billion missing estimates of $3.9 billion. Investors traded 2.15 million shares of SPDR S&P 500 ETF which was down $0.65 or 0.47%. Investors also traded 1.57 ...