Fluctuation

Fluctuation may refer to:

Physics and mathematics

 * Statistical fluctuations, in statistics, statistical mechanics, and thermodynamics
 * Thermal fluctuations, statistical fluctuations in a thermodynamic variable
 * Quantum fluctuation, arising from the uncertainty principle
 * Primordial fluctuations, density variations in the early universe
 * Universal conductance fluctuations, a quantum physics phenomenon encountered in electrical transport experiments in mesoscopic species

Finance and economics

 * Economic conjuncture, a critical combination of events in economics
 * Volatility (finance), price fluctuation