Performance Shipping has fallen further into the red, thanks to a one-time cost related to the sale of its second boxship in four months.

The New York-listed shipowner on Tuesday reported a $12.2m net loss for the fourth quarter, which compares to a $400,000 net loss for the same period last year.

The fourth-quarter deficit includes a $13.9m impairment charge for the sale of 6,541-teu Pucon (built 2006), which was bought for $20.2m