The Russian currency has posted strong gains against the US dollar and has outshone gold, data shows The Russian ruble has emerged as the world’s top-performing currency this year, outpacing even gold, Bloomberg reported on Tuesday, citing calculations based on over-the-counter market data. The ruble has surged 38% against the US dollar, marking the strongest gains of any currency so far this year. It has also outperformed gold – long seen as a safe-haven asset – which has risen 23% to record