The plunge in the oil price, the overcapacity in the container sector, and the uncertainty of whether Maersk will be awarded the right to continue the significant production in Qatar - these have all been factors in 2015, putting such pressure on the conglomerate, that the stock value has been practically cut in half since measured at the top in March.

These unfamiliar factors do not seem to worry the major investor Jan Bech Andersen however. Last week, he expanded his private portfolio of Maersk shares, which he assesses as a "big upside".