OREANDA-NEWS. On 04 April 2008 was announced, that For the week of March 24th – 28th, 2008 the total trading volume on FORTS (Futures & Options on RTS) equaled 220,7 billion rubles or 4,0 million contracts. The total open interest as of the last day of the week, March 28th, 2008 reached 235,6 billon rubles or 6,1 million contracts.