corner the market
Verb
Meaning
(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.orgSynonyms
Examples
No one seemed to know it, I would corner the market on retellings of this tale.
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.