GFEX caps platinum, palladium openings at 300 lots for non-futures firms from December 29

China's Guangzhou Futures Exchange will from December 29 restrict non-futures firms to opening 300 lots per day in designated platinum and palladium contracts and raise the minimum opening size to two lots. The move comes after platinum surged to $2,377.50 and palladium jumped more than 85% this year, while Shanghai silver spiked to $80 per ounce and China's main silver fund hit its 10% daily limit down.