The world's top rouble forecaster is unimpressed by the currency's 30 percent rebound from a record low.
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The analyst said that the rouble may be testing new lows again this quarter as the plunge in oil, Russia's top export, threatens to cost the country its investment-grade credit ratings and turns Russians away from their currency.
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The rouble traded at 61.55 per dollar on Friday, after reaching 80.1 on Dec 16, the weakest on record.
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Depreciation would exacerbate the challenges facing President Vladimir Putin as the economy teeters on the edge of a recession and investors dump the nation's bonds.
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Fitch Ratings downgraded Russian debt on Friday to the lowest investment grade amid plummeting crude prices and sanctions over Ukraine, maintaining a negative outlook.
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Standard & Poor's is also weighing a junk rating for the world's biggest energy exporter.