An investor can consistently make excess profits by following the advice provided on the Financial Guru public website.Which form of efficiency is contradicted?

Question

Quizplus · Accepted Answer

The statement implies that the advice provided on the publicly available website can help an investor consistently make excess profits, which contradicts the semi-strong form of efficiency. In the semi-strong form, all publicly available information is already reflected in the stock prices, and it is impossible to consistently make excess profits by using such information.

An Investor Can Consistently Make Excess Profits by Following the Advice