The domestic companies index (DCI) went down by 0.09 percent during the week ending March 16, closing at 8 680.01 points from 8 687.50 points the previous week, as indicated by Stockbrokers Botswana weekly report. For the year-to-date, the index lost 2.03 percent. A total of 1 472 305 securities valued at P16 918 653 were traded during the week.