Stock futures are mixed following the release of the Empire Manufacturing Index. The index came in at -8.1 versus expectations of a reading of -1.0. Nasdaq futures are lower, as Apple 's (AAPL) stock is reportedly dragging down the index's futures. The tech company's shares are dropping another 1.4%, and are now hovering near $500. The next economic report is due out at 9:00 am ET, when the Long-term Treasury Inflow report will be released.