(Bloomberg) -- Gold options are signaling there's more room to run for bulls.

Prices and volumes surged Tuesday on calls giving holders the right to buy bullion at higher prices. As of 11:21 a.m. in New York, trading in the most-active option was 10 times Monday's total, and price swings on options were at the highest in three months. Investors also returned to the biggest exchange-traded fund backed by the metal.

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