A form of pricing efficiency where the price of the security reflects the past price and trading history of the security. In such a market , security prices follow a random walk. Related: Semistrong form efficiency , strong form efficiency .
WEAK FORM EFFICIENCY
Meaning of WEAK FORM EFFICIENCY in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012