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Basic Question 1 of 20

Which of the following is a statement of weak-form efficiency?

A. If markets are efficient in the weak form, then it is impossible to make consistently superior profits by using trading rules based on past returns.
B. If the markets are efficient in the weak form, then prices will adjust immediately to public information.
C. If the markets are efficient in the weak form, then prices reflect all information.

User Contributed Comments 3

User Comment
saltnvinegar technical analysis is useless and no predictions can be based on past data.
Creep Technical analysts assume the market is weak form, INEFFICIENT
khalifa92 just inefficient
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Andrea Schildbach

Learning Outcome Statements

describe market anomalies

CFA® 2026 Level I Curriculum, Volume 3, Module 3.