Open order
An order that have not been filled or met.
Offer
The term used when a trader intends to buy a security. Also, known as the ask.
Oscillator
An indicator that determines when a market is in an overbought or oversold condition.
OTC
Securities that do not meet NYSE standards for trading on the floor.
Overbought
When a security’s price is too high within a certain time frame.
Oversold
When a security’s price is too low within a certain time frame.
Outside day
The high is above the previous day’s high and the low is below the previous day’s low.
ORB
Opening range breakout.