At the beginning of trading on Monday, the Russian stock market showed a sharp drop. The reason for this dynamic was a sharp drop in oil prices, which occurred due to the disruption of the OPEC + deal and Russia, as well as Saudi Arabia's plans to increase production.

      On average, the market at the opening fell by 8-12%. Securities of oil and gas companies showed the strongest drop: Rosneft shares, for example, lost 14%. Lukoil lost 13.4%, Gazprom lost 9.9%, Sberbank - 9.3%. At the same time, shares of Russian gold mining companies are growing, and on the London Stock Exchange,  securities of Russian companies rose on average to 14% by the opening.

Sources: http://mbgazeta.ru