Sanctions-hit Russia has lost around a tenth of hard currency reserves so far this year in dollar terms, bucking a generally rising trend across most emerging markets.
Russian reserves stood at $457 billion by end-September, compared with $510 billion at the end of 2013 and $515 billion a year ago, because of hefty ruble-supportive interventions during the Crimea crisis earlier this year.
Russian reserves also edged down by the equivalent of $20 billion in the third quarter, primarily due to valuation effects. Around 40 percent of its reserves are in euros. The currency fell 8 percent versus the dollar between July and September.