Oil prices have rebounded sharply on geopolitical risk despite no meaningful supply losses. Call Options Go Wild as Brent Traders Bet Big on Chaos - Iran protests and the increasing probability that US President Trump would exploit that unrest for another series of strikes on Tehran have been dragging oil prices higher, boosting oil options trading in recent days. - This Monday witnessed the busiest-ever single day of Brent crude call option trading (556,000 contracts) as market participants rushed to ...