Dahlman Rose downgraded several dry bulk shippers, and said the market has been under intense pressure during the past few months, which is likely to weigh on ship values.

The brokerage cut Eagle Bulk , Excel Maritime , and Freeseas to "hold" from "buy", and cut price targets on Baltic Trading and Diana Shipping.

"Based on our supply/demand forecast, it appears the dry bulk market will not see a major improvement until the 2014/2015 time frame," analyst Omar Nokta said in a note to clients.

The analyst said Baltic Dry Index has declined significantly in recent months, hurt by the change in the pricing structure of iron ore and coal, and a very heavy delivery schedule.

Flooding in Queensland and weather-related problems in Colombia, South Africa, Russia and Indonesia have all disrupted coal shipments at a time when the dry bulk market is already finding it tough to absorb growing vessel deliveries ordered before the economic turmoil in 2008. (Reuters)