Verb
(idiomatic, business, finance) To monopolize a resource or commodity, as with the intent of driving up prices.
(idiomatic, by extension) To have exclusive possession; to possess something to a high or excessive degree.
Source: en.wiktionary.orgNo one seemed to know it, I would corner the market on retellings of this tale. Source: Internet
One of the more common pieces of advice successful business owners pass on to fledgling entrepreneurs is to find your niche and corner the market. Source: Internet