Stock futures were little changed on Monday, after a six-day rally in the benchmark S&P 500, as upbeat manufacturing data in China was offset by soft readings on business activity in Europe. The HSBC/Markit Flash China Manufacturing Purchasing Managers’ Index rose to 50.8 in June from May’s final reading of 49.4, topping the 49.7 and edging above the 50-point level that separates growth in activity from contraction for the first time since December. Markit’s flash PMI reading for the U.S. for June is due at 9:00 a.m. (1300 GMT).