From Longman Dictionary of Contemporary Englishon the open marketon the open marketgoods that are bought and sold on the open market are sold publicly rather than privately The painting would fetch millions of dollars if it was sold on the open market. → open market
Examples from the Corpus
sold on the open market• Of these, £1.5 billion to £2 billion worth could be sold on the open market.• The remaining homes will be sold on the open market. 