New York shipping stocks continued their meteoric rise Wednesday amid questions about how long the surge that has followed the election of US President-elect Donald Trump can last.

But the Nasdaq put the brakes on trading of the biggest gainer, George Economou-led DryShips, after the company's shares rose by some 1,500% in just a few days. The exchange says it has asked the Greek bulker and offshore vessel owner for additional information.

At