Used in the context of general equities. Indication on the order ticket of a limit order to buy or sell securities at a price better than the specified limit price if a better price can be obtained; does not imply a not-held order , but rather puts more emphasis on executing at the limit if available.
OR BETTER
Meaning of OR BETTER in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012