(Bloomberg) -- Gold assets held in the world’s biggest exchange-traded product backed by the metal climbed to the highest since September 2014.

Holdings in SPDR Gold Shares jumped 2% on Monday to 777.27 metric tons. The assets surged 16% in February, the biggest monthly gain in seven years. SPDR has attracted $4.55 billion of new money in 2016, the most among all U.S.-listed ETFs, according to data compiled by Bloomberg as of Feb. 28.

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