The RTS index decreased 7.01 percent to 583.17 points in the period from May 24 to 28, the press service of the RTS exchange reported. Tatneft with a 10.25-percent gain was the leader of growth.
Common stocks of YUKOS led the decliners last week and lost 20 percent of their value.
RAO UES common shares had the largest trade volume in the reported period ($47.403m); LUKoil and Sberbank common stocks followed them with $17.596m and $9.943m respectively. The share of these securities of the total trade was 37.87 percent, 14.06 percent and 7.94 percent respectively.