A security that meets the trading requirements of a registered exchange and can be traded on that exchange. Listed securities are assigned a trading symbol by the exchange. Unlisted securities trade in the OTC market.
A stock or bond that has been listed on one of the registered securities exchanges in the US.
security which is traded on an exchange for the organised buying and selling of securities (eg. shares on the stock exchange, or futures on the futures exchange). Listed securities are usually more liquid than unlisted ones owing to the existence of such an exchange. (See also Secondary Market).