I don't trade these but would like to here from ET's infinite wisdom.... have never seen the spread so negative for platinum... have we?
Platinum on Comex is such a trash contract to trade. Wide, thin, and impossible to get out without freakish slippage... There's a great deal of automated market making and as soon as you bid or offer they flee like roaches away from you.
i got caught up in the world record wheat move back in the 90's could not get out of short calls. lol never will i forget that EVER! copper pits were just as bad basically any ny market would kill ya.