The hypothesis that market prices reflect all historical information is called efficiency in the:

A) Open form.
B) Strong form.
C) Semi-strong form.
D) Weak form.
E) Stable form.

Efficiency

The ability of an entity or system to achieve its goals with the least waste of time, effort, or material resources.

Market Prices

The current value at which an asset or service can be bought or sold in a competitive marketplace.

Historical Information

Data regarding past events, performance, and decisions in a company or market, used for research, analysis, and strategic planning.