noun which may take the genitive case particle 'no'
unlisted; not publicly traded
Business term for a company or stock that is not listed on a stock exchange.
That company is unlisted, so it does not offer its shares to the public.
Financial information for unlisted companies is hard to obtain.
非上場 describes a company that is not listed on any exchange, the direct opposite of the financial sense of 上場.
Compound of 非 (hi, 'non-') and 上場 (jōjō, 'listing on a stock exchange').