Denmark's AP Moller-Maersk is using massive earnings from booming boxship markets to buy back more of its shares.

The giant shipowner said it will repurchase stock worth up to DKK 31bn ($5bn) over two years, as well as finishing the current DKK 10bn buyback programme earlier than originally planned.

The company is swimming in cash - $6.4bn - having announced a record net profit of $2.7bn