moscow jan 4 reuters  the russian rouble edged lower in light trade on tuesday while the benchmark moex stock index rose to an almost onemonth high amid higher oil prices at 0700 gmt the rouble was 014 weaker against the dollar at 7465 and held steady to trade at 8431 versus the euro  oil prices rose on tuesday as investors embraced expectations that oil producers will add supply at a meeting on tuesday as a sign that fuel demand remains robust despite the spread of the omicron coronavirus variant the rouble has been under increased pressure since october as western nations have expressed concerns about russias military buildup near neighbouring ukraine us secretary of state antony blinken on monday discussed the military buildup with the bucharest nine group of nato allies the state department said read more trading activity is expected to be low this week and recover to regular levels after jan 10 the end of russias new year holidays the dollardenominated rts index irts gained 05 to 16298 points the roublebased moex russian index imoex climbed 03 to 38636 points its highest since dec 7