At OR Better
“At or better” is another kind of order. It gives instructions to the broker to buy or sell an asset or instrument at a certain value or over that value.
Since there is a certain limit at which the order needs to be executed, it is considered a limit order.
Based on that, this order might take a longer period to be executed and might even not be executed at all.
For example, a trader wants to sell a share at 150 USD or above. If the value never reaches that limit, the order is not going to be executed.