He has set a new record for the worlds richest person according to the Bloomberg Billionaires Index. This year alone, he gained $56.7 billion. shares of the Seattle-based retailer surged 4.4 per cent to a record $2,878.70 Wednesday, boosting the founder’s world-leading fortune to $171.6 billion. That tops his previous high of $167.7 billion, set on Sept. 4, 2018.