The domestic companies index (DCI) lost 1.13 percent during the week ending May 17, closing at 8 647.10 points from 8 745.59 points the previous week. For the year-to-date, the index has risen by 15.14 percent, while the foreign companies index declined by 0.96 percent. A total of 17 233 542 securities valued at P66 643 868 were traded during the week.