Greek shipowner George Economou has once again increased his stockholding ratio in New York-listed DryShips without buying a single new share.

A public filing shows Economou now holds 72.7% of DryShips after further share buybacks under the company’s $50m repurchase programme reduced the overall count of stock outstanding.

The latest buybacks have reduced overall share count by about 1.4 million, to 99.7