upstairs market(redirected from Upstairs Markets)
The trading of listed securities that occurs off the floor of the exchange. That is, the upstairs market is essentially over-the-counter trading for a listed security. Much of the time, upstairs trades occur within a broker-dealer firm with the broker-dealer acting as the agent for both counterparties. Some exchanges prohibit these trades.
The trading of securities within a broker-dealer firm rather than taking a trade to an exchange floor or trading with another broker-dealer in the over-the-counter market. In the upstairs market, the broker-dealer acts as a dealer or as an agent for both parties.