His portfolio is valued at 23.5 million kronor (3.4 million dollars), more than three times that of the second largest ministerial shareholding.
That is owned by agriculture minister Eskil Erlandsson , whose portfolio is worth 6.8 million kronor.
In third place is culture minister Lena Adelsohn Lilijeroth with a relatively paltry 1.1 million kronor is stocks and shares.
Carl Bildt has now offloaded his much-discussed options in Vostok Nafta and his shares in Lundin Petroleum . Instead, his independent stockbroker has placed the money in high return funds and the Russian property market.
Four ministers in the Swedish government - including minister for enterprise Maud Olofsson - have no savings at all in the form of stocks.