The domestic companies index (DCI) went down by 0.63 percent during the week ending March 23, closing at 8 625.09 points from 8 680.01 points the previous week, as indicated by Stockbrokers Botswana weekly report. For the year-to-date, the index lost 2.65 percent. A total of 1 820 448 securities valued at P6 906 680 were traded during the week.