Glossary

The action of a trader to buy securities that they previously sold short, in order to close the position.

A trading strategy of selling a borrowed security with a purpose of re-purchasing at a lower price for profit. This is the opposite of entering a Long position.

A bond that reaches maturity within 5 years.

A condition or event which alerts traders to buy or sell a particular security.

A technical mathematical formula that adds the closing prices over a range of time periods then divides by the total number of time periods.

The quantity magnitude of a trade order.

A by-product of poorly executed trades, this is the difference between the order price and the actual execution price of a security.

A technical oscillator that tracks momentum by comparing closing prices for a given market over N periods of time.

Possessing assets in excess of liabilities. 

An exchange member who makes the market in a specific security.