2015 World's Billionaires: Bouncebacks

US Net Worth: $1.2 blnMaggie MagerkoWild spending and the housing crash put 84 Lumber on the brink of bankruptcy in 2009. Magerko used her checking account, houses and jewellery for loans that kept it afloat, fired two-thirds of her staff and closed half her stores. Now she’s a billionaire again.

USNet Worth: $4.1 blnDonald Trump Trump shot to billionaire status in the 1980s as he borrowed big to finance ambitious real estate projects. A 1990 real estate crash sent him into debt—and a negative net worth. But Trump kept building, and scraped his way back to billionaire status by 1997. He is now worth more than ever, thanks to trophy New York properties.

Japan Net Worth: $1.95 blnYasumitsu ShigetaThe college dropout founded mobile phone distributor Hikari Tsushin in 1988 at age 23. He made and lost $39 billion in four months during the dotcom craze of 2000. He reinvented himself as a medical insurance provider and returned as a billionaire in 2005.

US Net Worth: $1.7 blnHerbert HuntHunt and his brother Nelson Bunker Hunt invested heavily in silver in the 1970s, but as the commodity collapsed in the 1980s, he slipped into bankruptcy. Hunt stayed in the oil game and in 2012 sold a chunk of his acreage for $1.5 billion. He returned to billionaire status in 2013. USNet Worth: $1.2 blnRobert StillerFounder of Keurig Green Mountain Bob Stiller made a fortune selling coffee and K-cups, turning billionaire in 2011. His spending caught up with him: In 2012 he sold 5 million shares to repay money he borrowed against his stock. Price gains made him a billionaire once more.

Images: FROM TOP: REUTERS LUKE COPPING DOUG MURRAY / REUTERS