A real time stock or bond quote is one that states a security's most recent offer to sell or bid ( buy ). A delayed quote shows the same bid and ask prices 15 minutes and sometimes 20 minutes after a trade takes place.
REAL TIME
Meaning of REAL TIME in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012