grey marketˈgrey ˌmarket British EnglishBrE, gray market American EnglishAmE [countableC]FINANCE1the buying and selling of shares just before they are officially ISSUED (=made available and sold for the first time)If a grey market price drifts too low, buyers will spring up to correct it.
2when goods are bought from someone abroad who is not an official supplier and then sold at a price which is lower than that charged for goods from an official supplierThe manufacturer warranty may not be valid on grey market products.
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