Efficient Market Hypothesis
The Efficient Market Hypothesis (EMH) is a financial theory that asserts asset prices fully reflect all available information, making it impossible to consistently achieve above-average returns through market timing or stock picking. It posits that markets are efficient in processing information, so securities are always fairly priced based on their risk and return characteristics. This concept is foundational in modern finance, influencing investment strategies and regulatory policies.
Developers should learn EMH when working in fintech, algorithmic trading, or quantitative finance to understand market dynamics and design systems that account for market efficiency. It's crucial for building trading algorithms, risk management tools, and financial models that assume rational market behavior. Knowledge of EMH helps in evaluating investment strategies and developing applications for portfolio optimization or market analysis.