OREANDA-NEWS. National Rating Agency has affirmed its 'AA' reliability rating on RUSS-INVEST OJSC. The outlook for the rating is Stable. The company was assigned NRA’s first-time ‘A+’ reliability rating on Feb. 1, 2005. The latest rating action on RUSS-INVEST (the ‘AA’ reliability rating affirmation with a stable outlook) was on June 8, 2015.