Attention has been focused on New York-based Millenium since it completed one of the last successful shipping bond offerings in July.
At the time of issue the company said it would use the money to buy a total of 17 vessels. So far it has acquired 11 bulkers.
However, sources said this week that although Millenium would probably conclude one more acquisition shortly plans to buy a further six Handysize vessels were currently on hold.