Wall Street looks set to start the new week on a negative note, with the U.S. index futures pointing to a negative opening on Monday. After Asian stocks closed mixed, as traders digested two separate Chinese manufacturing readings, showing contraction by the sector, the European markets are seeing weakness. Weighed down by the China data, commodities, including oil, are trading lower. Traders in the domestic markets may also focus on data on consumer spending, inflation and the manufacturing sector.