These Stock Market-Battered Execs Just Became Ex-Billionaires by Robert Hackett @FortuneMagazine January 26, 2016, 1:10 PM EST E-mail Tweet Facebook Linkedin Share icons The billionaire club just got more exclusive. As U.S. stocks have taken a hammering this year, a score of American executives have lost the coveted three comma title, the New York Post reports, citing Forbes and Bloomberg data. In fact, 145 people worldwide—8% of the world’s billionaires—have been ejected from the 10-figure net worth echelon over the past eight months, the Post says. Get Data Sheet, Fortune’s technology newsletter. This wealth drubbing is partly due to financial markets having had their worst ever start to a year. Pessimism continues to linger about the global economy as stocks have slumped 13% from their highs last year, the Post notes. Businessmen who have dropped in the ranks include: Jamie Dimon, CEO of JPMorgan jpm , Lloyd Blankfein, CEO of Goldman Sach gs , Nick Woodman, CEO of GoPro gpro , and Michael Pearson, CEO of Valeant vrx . Many of these execs’ fortunes are tied up in company shares. For more on wealth, watch: The list of ex-billionaires also includes Ryan Kavanaugh, CEO of Relativity Media, Clifford Illig, vice chairman and co-founder of Cerner Corporation cern , investor Charles Brandes, Keurig-founder gmcr Robert Stiller, and biotech bigshot Alan Auerbach, according to the Post. Jack Dorsey, CEO of Twitter twtr and Square sq , temporarily dipped below the watermark before regaining the 10-figure title this week.