In equities, Caterpillar ( CAT ) fell 5% after Q3 sales and earnings declined and missed estimates. -Dow Jones Industrial down 0.48% -S&P 500 futures down 0.50% -Nasdaq 100 futures down 0.50% -Nasdaq-100 Pre-Market Indicator down 0.26% After rallying on a slew corporate earnings and on hopes that the U.S. Federal Reserve will maintain its asset purchasing program in the wake of a disappointing jobs market report, stocks were poised to retreat Wednesday after China's central bank suggested it might tighten the cash flow to stem inflation risks.