Market Cap is the measure of the size of a company’s market capitalization.
The figure is based on an index of the company’s share price.
In 2018, Trump’s market cap of $19.8B was the highest.
It was surpassed by other billionaires in 2021 and 2022, according to data from the S&P 500 and FactSet.
The chart below shows the top 20 richest people on the planet as of the end of 2018.
Source: Forbes – The Forbes 400 Index, the Bloomberg Billionaires Index and the Bloomberg Trillionaires Index