CME Group's metals trading volume averaged 565,000 contracts/day in October, up 46% from 386,000 contracts/day in October 2016, the US exchange group said Thursday.
October's daily average was down from 660,000 contracts/day in September.
In October, gold futures and options average daily volume was up 54% year on year to 345,000 contracts, while silver futures and options ADV was up 29% to 88,000 contracts.
Copper futures and options achieved 54% growth, averaging 110,000 contracts/day, with copper options hitting an open interest record of 16,400 contracts on October 25, CME said.
Aluminum futures and options ADV grew 34% year on year in October, the group said, without providing a volume figure.
CME's suite of metals products includes precious metals (gold, silver, platinum and palladium), base metals (copper, aluminum, aluminum alloy, alumina, zinc and lead) and ferrous metals (iron ore, ferrous scrap and hot rolled coil).
