Many theorists examine the behavior of stock prices, and the random walk hypothesis attempts to explain why stocks move the way they do. The random walk hypothesis states that stock market prices ...

Scientific progress depends on results that can be repeated – yet across disciplines, too many experiments fail that test.

According to the “random walk” hypothesis, markets are inherently unpredictable. This hypothesis was the force behind the creation of index funds that were designed to simply replicate the returns of ...

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Khadija Khartit is a strategy, investment, and ...