Uncovered Call

The act by a trader to sell a Call option without owning the underlying asset.

Uncovered Put

A strategy where the trader sells a Put Option without having a Short position in the underlying Stock.


A financial instrument (Stocks, Futures, Commodities, etc.) that formulates the basis for a Derivative’s (such as Options) price.

Unlisted Security

A financial security that has not met exchange requirements to be listed on the exchange.

Up Volume

A security that closes a day of trading activity at a higher volume level than at that day’s opening price.


A fluctuation in a securities price which is higher than the previous transaction.


A stock sector that is comprised of privatized gas, electricity and water industries.