‘Bond King’ Bill Gross, the co-founder of investment giant PIMCO, is selling off his extensive stamp collection and is expecting to raise between $15 million and $20 million. The billionaire ...

America’s most valuable postage stamp sold for nearly $4.4 million on Friday. The 1868 one-cent "Z" Grill was sold as part of the collection owned by "Bond King" Bill Gross, who co-founded asset ...

PIMCO founder and investor Bill Gross — best known as the "Bond ... sold the final parts of his rare stamp collection at a Robert A. Siegel Auction Galleries event held over the weekend.