The market caps for week of February 4-28, 2019 is at least $5 trillion, according to the Bloomberg Billionaire Index.
The market has been hit hard, with stocks in the S&P 500 and Nasdaq plunging as much as 8 percent.
Some analysts are already calling for a selloff in the market.
The index measures the value of a company’s market capitalization, its market capitalizations in the U.S., the European Union, and Japan.
This week’s data is from Feb. 3-10, the same week as the market caps dropped to a record low of $5.5 trillion.