Commodities Stock Glossary Weak-form efficiency price

		* S&P 500 * Options-Trading * QQQQ Trading System	* QQQQ Market Timing * Stock Market Sentiment * Day Trading

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12/02/2011: Plus 40% in a half of year on the S&P 500

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Commodities & Stock Glossary: Weak-form efficiency

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Term:

Weak-form efficiency

Definition:

A pricing theory that the price of a security reflects the past price and Trading history of the security. Theory implies that security prices follow a random walk. Related: Semistrong-form efficiency, strong-form efficiency.

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02/09/2012 - SV1n