ABC.io which is listed with a $200,000 buy it now at DAN.com was pushed to auction at Sedo with a $50,000 bid. According to Sedo the seller is out of China. There are a few hours left if you are looking to jump the current leader.
Namebio just reported 10 minutes ago that Insurance.io went for $22,500 at Park.io.
So within 10 hours we could have the 4th and 17th highest reported .io sales take place. Of course the $50,000 has to be paid at Sedo, and the bidder not get cold feet waiting a week.