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British Dictionary definitions for random walk theory

random walk theory

noun
  1. stock exchange the theory that the future movement of share prices does not reflect past movements and therefore will not follow a discernible pattern
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012