The domestic companies index (DCI) went down by 0.18 percent during the week ending June 22, closing at 8 505.73 points from 8 521.40 points the previous week, as indicated by Stockbrokers Botswana weekly report. For the year-to-date, the index lost 4 percent. A total of 2 948 683 securities valued at P33 820 535 were traded during the week.