Diana Shipping has just pulled off what may be the dry bulk sector’s sale-and-purchase transaction of the summer, but did it pay too much for the privilege?

Sources in the dry bulk and financial markets immediately raised eyebrows over the average $36.67m the Greek owner is paying for nine Sea Trade Holdings ultramaxes built between 2015 and 2018.

Online platform Vessels Value had the Japanese-built ships priced at $31.3m