Stock market cycle

Stock market cycles are proposed patterns that proponents argue may exist in stock markets. Many such cycles have been proposed, such as tying stock market changes to political leadership, or fluctuations in commodity prices. Some stock market designs are universally recognized. However, many academics and professional investors are skeptical of any theory claiming to identify or predict stock market cycles precisely. Some sources argue identifying any such patterns as a "cycle" is a misnomer, because of their non-cyclical nature. Economists using efficient-market hypothesis say that asset prices reflect all available information meaning that it is impossible to systematically beat the market by taking advantage of such cycles.

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