Copper option contracts are available for trading at London Metal Exchange (LME) and New York Mercantile Exchange (NYMEX). LME Copper option prices are quoted in dollars and cents per metric ton and their underlying futures are traded in lots of 25 tonnes (55116 pounds) of copper. Copper is mined in open mines around the world, with Chile and the United States leading in overall copper production. The demand for copper is increasing as countries such as China and India continue to develop, while the supply remains tight. The growing demand and constrained supply is likely to keep copper prices volatile in the near future. New strategy. Although the dates are different for the “LME, futures, and ETNs,” below, trades and those shown for “May 2014 copper futures and ETNs,” there are also 16 days indicated for the new strategy. For the ETN there are seven profitable days and nine days with losses, for a net profit of 1.26.