The domestic companies index went down by 0.15 percent during the week ending February 9, closing at 8 719.68 points from 8 732.60 points the previous week, as indicated by Stockbrokers Botswana weekly report. For the year-to-date, the index decreased by 1.59 percent. A total of 1 237 539 securities valued at P8 631 265 were traded during the week.