Genco Shipping and Trading (NYSE:GNK) has told shareholders to reject an unsolicited tender offer from Diana Shipping Inc., with its board concluding that the bid undervalues the drybulk shipping company's assets and business and fails to provide a control premium. The board reiterated its unanimous opposition to the offer on two grounds: that the price does not reflect the underlying value of Genco's fleet and operating platform, and that it carries no premium for control of one of the larger US-listed drybulk owners.