Gold traders are more bullish after central banks expanded their bullion reserves and hedge funds increased bets on a rally for the first time in three weeks.

Fourteen of 28 analysts surveyed by Bloomberg expect prices to gain next week and nine were neutral, the highest proportion in two weeks. Mexico, Russia and Turkey added about 44.8 metric tons valued at $2.39 billion to reserves in March, International Monetary Fund data show. Fund managers raised their so-called net-long positions by 2.5 percent in the week ended April 17, according to the Commodity Futures Trading Commission.