What are the different forms of market efficiency? Explain.

Market efficiency is a fundamental concept in Security Analysis and Portfolio Management, referring to how well market prices reflect available information. The Efficient Market Hypothesis (EMH), proposed by Eugene Fama, categorizes market efficiency into three forms: weak form, semi-strong form, and strong form. These forms differ based on the level of information incorporated into asset prices.  

### 1. Weak Form Efficiency  
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