Trading in the major U.S. index futures suggests that Wall Street stocks may open Wednesday’s session higher. Chinese export data released earlier today vouched for the economic resilience of the world’s second largest economy, although analysts were quick to point out the extraneous factors involved in the upside. However, commodities, the drivers of much of the recent market rally are losing steam. Oil is pulling back from a 4-month high. Domestic economic reports on retail sales and producer prices and the earnings report of JP Morgan could also sway the markets.