KUALA LUMPUR (June 18): Bursa Malaysia is expected to trade cautiously with a downside bias in the upcoming week as global market uncertainty remains on investors' radar, a dealer said. Weekly turnover was higher at 13.95 billion units valued at RM11.06 billion against 11.03 billion units valued at RM7.49 billion last week. Main Market volume widened to 8.34 billion shares worth RM9.84 billion from 6.42 billion shares worth RM6.28 billion in the previous week. Warrants volume went up to 2.64 billion units valued at RM468.76 million versus 1.65 billion units valued at RM291.43 million previously. ACE Market volume strengthened to 2.95 billion shares worth RM745.4 million from 2.94 billion shares worth RM916.51 million the week before.