Billionaire snatches up America's most expensive house in real estate spending spree

Billionaire hedge fund manager Ken Griffin just closed on the most expensive property ever sold in the U.S. – a $238 million New York penthouse with stunning views of Central Park. The purchase, which rivals global real estate records set in Hong Kong and Monte Carlo, isn’t the only one Griffin has made this week. The Citadel founder appears to be on a bit of a real estate spending spree, setting records at every turn.