OREANDA-NEWS. On 28 August 2008 was announced, that For the week of August 18th – August 22nd, 2008 the total trading volume on FORTS (Futures & Options on RTS) equaled 235,9 bln. roubles or 4,6 mln. contracts, including 20,3 bln. roubles during the evening trading session. The total open interest as of the last day of the week, August 22nd, 2008 reached 388,5 bln. roubles or 10,0 mln. contracts.