The drop in share prices came as oil prices fell to new lows and dry-bulk indices fell across major size classes while broader equities markets also dipped in New York. And for the offshore vessel segments, the drop also came as an investment bank warned of rig count decline amid the energy market slump.

Nasdaq-listed DryShips, which is involved in bulker and tanker shipping and has the majority stake in separately listed driller Ocean Rig, saw its shares plunge by 20.8%