Share prices have been easing back amid an average trade volume; the RTS index has fallen to below 360 points. The negative background, which is due to yesterday's decrease in US indices and world oil prices, combat at the Baghdad airport and expectations for another negative macroeconomic data from the USA, arises pessimistic sentiments on world markets. Selling has prevailed today. Some analysts believe that the main factor that influences the Russian stock market is the dynamics of US stock indices. Oil shares are the leaders of a decrease under any evidence of a drop in world oil prices and these shares faintly react to an upward tendency. The main potential of growth is in shares of energy and telecom companies and banks.