Sensex ends up 522pts at 9,031BS Reporter / Mumbai October 28, 2008, 19:16 ISTThe Sensex opened with a positive gap of 447 points at 8,957 on the back of positive cues from the global markets. The index moved in a range of 9,057 to 8,913, and finally ended (provisional) with a gain of 522 points at 9,031.