Slumping Stock Price Kicks Twitter Ceo Jack Dorsey Out Of Billionaire Club

January 20th was a particularly brutal day for Dorsey. Both of the tech companies he helped found took a beating. Just 90 minutes after the stock market’s opening bell, Twitter stock was down 6% and Square was down 11%. On Wednesday, Square’s share price fell to $8.46, which is below the $9 debut it was set at when the company went public in November of 2015. It has since rebounded a bit, to $9.87 a share. Square’s highest stock price was $13.09. Twitter has fallen from $23.14 per share on December 31st to $15.64 on Wednesday. It has also rebounded just a bit, to $17.86. Both Square and Twitter are down 30% in 2016. Twitter is down 57% over the past 12 months. Currently, Dorsey is juggling the CEO gig at both companies. In September, Dorsey’s net worth was estimated at $2.2 billion, due in large part to the $6 billion private valuation of Square. When Square went public in November, Dorsey’s net worth dropped $800 million to $1.4 billion overnight. When the dust settled on Wednesday’s day of trading, Dorsey’s net worth was $944 million.