Information Efficiency Hypothesis

The information efficiency hypothesis posits that asset prices fully reflect all available information at any given time. In an efficient market, it is impossible to consistently achieve returns that exceed average market returns on a risk-adjusted basis because any new information is immediately incorporated into the price.

While this is a theoretical ideal, real-world markets often exhibit varying degrees of efficiency due to information delays, transaction costs, and cognitive biases. In the context of cryptocurrency, the hypothesis is frequently tested due to the high volatility and the prevalence of speculative trading.

Understanding where and why markets deviate from efficiency helps traders and investors identify opportunities and assess the risks associated with different assets. It remains a central concept in finance for evaluating the quality and maturity of market systems.