It was 5.42 am on March 8 in London when the nickel market broke. At that time of day, bleary-eyed traders are typically just glancing at prices as they swig coffee on their way to the office.
On this day, however, metal traders were glued to a screen, watching the price action on the electronic market, which was already open to accommodate Asian trading. Nickel prices usually move a few hundred dollars per tonne in a day. For most of the past decade, they’d traded between $US10,000 ($13,700) and $US20,000.
Bloomberg Businessweek