Bala Cynwyd billionaire Jeffrey Yass, Pennsylvania’s richest person, nearly doubled his net worth to $50 billion last year thanks to his investment in ByteDance, TikTok’s parent company ...
Jeff Yass, the cofounder of Susquehanna International Group, has gained an unmatched $17.2 billion in wealth this year as of Wednesday's close, according to the Bloomberg Billionaires Index.