Last Trading Day Today for these JUNE #Futures OPTIONS: #Copper; #Gold; #Silver; #Heating Oil; #Natural Gas; #RBOB Gas. June Copper options will cease trading at noon (CDT). June Silver options will cease trading at 12:25 p.m. (CDT). June Gold options will cease trading at 12:30 p.m. (CDT). The June Energy options listed here will cease trading at 1:30 p.m. (CDT).