In one sense, Amazon founder Jeff Bezos and his ex-wife, MacKenzie Bezos, are nothing special.
By finalizing their divorce this month, they join the millions of Americans now splitting up in middle age. The rate of divorce after age 50 has doubled in the U.S. since 1990.
The billionaire exes are unique, though, in escaping divorce with their finances relatively unscathed. He's still the world's richest person, worth $123.1 billion, and she has a $39.7 billion fortune, according to the Bloomberg Billionaires Index. Amazon shares climbed 19% since they announced the end of their 25-year marriage in January.