The Domestic Companies Index (DCI) recorded a decrease of 0.43 percent during the week ending December 15, closing at 8 850.43 points from 8 888.81 points the previous week, as indicated by Stockbrokers Botswana  weekly report. For the year-to-date, the index declined by 5.85 percent. A total of 3 192 944 securities valued at P8 214 776 were traded during the week.