non paywall link https://business.financialpost.com/pmn/business-pmn/oil-crash-busted-a-brokers-computers-and-inflicted-huge-losses https://business.financialp

non paywall link https://business.financialpost.com/pmn/business-pmn/oil-crash-busted-a-brokers-computers-and-inflicted-huge-losses https://business.financialpost.com/pmn/business-pmn/oil-cras...