OTC

英[ˌəʊtiː'siː] 美[ˌoʊtiː'siː]
  • abbr.贸易合作组织(=OrganizationforTradeCooperation);店面交易的;非处方的(=Over-the-counter)
Adjective:
  1. (of securities) not traded on a stock exchange;

    "over-the-counter stocks"