Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.
2. In technical analysis, a situation in which the price of a security falls below a support level. The support level is a price below which a security only rarely drops. This is a highly bearish signal because it indicates the price likely will continue to fall until it finds another support level.
Stock prices fluctuate constantly, but each stock typically moves within a fairly narrow range. That means the stock's average price changes gradually, if at all. But sometimes a stock's price breaks out of its limits, and jumps or tumbles suddenly.
Usually the breakout is fueled by a particular event. The company may realize a commercial success, such as a drug company discovering a new cure for a major disease. Or a breakout may reflect a financial development, such as a new alliance with a successful partner.