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An effective upper bound on prices achieved because of many willing sellers at that price level.

Resistance Level

In technical analysis, a price that a security does not, or only rarely, rise above. Technical analysts identify a resistance level by looking at past performance. When the security approaches the resistance level, it is seen as an indication to sell the security, which will increase the supply, causing the security's price to fall back below the resistance level. If there are too many buyers, however, the security rises above the resistance level. When this occurs, the price of the security will likely continue to rise until it finds another resistance level. It is also called the overhead resistance level. See also: Price ceiling, Support (Support level).


An increased supply of a security. Compare support.


Resistance, or resistance level, is the top of a stock's current trading range, and the point at which the price is higher than investors are willing to pay. As stockholders sell at resistance level, the stock price goes down because supply exceeds demand.

For example, if, on a repeated basis, as stock A's price reaches $60, stockholders begin to sell, then $60 is considered its resistance level. But a trading range isn't fixed and investor attitudes change, so the resistance level tends to move higher or lower over time.

If stock A rises to $63 without a surge of selling, the current resistance line has been breached. This may be the result of a rising market or a bullish assessment of the stock's value. On the other hand, if selling increases at $57, that may become the new resistance level.

Conversely, the level at which demand exceeds supply and investors typically buy a certain stock is called support. It's the point that's considered the bottom of a stock's current trading range.

Technical analysts use the concepts of resistance and support in anticipating future stock price movements.

References in periodicals archive ?
A solution to antimicrobial resistance need not be expensive.
These results are in concordance with a similar antimicrobial resistance surveillance study showing that farm animals display significant resistance to some antimicrobial agents, including neomycin, streptomycin, tetracycline, ampicillin, and sulfisoxazole (Sayah et al.
Overuse, underuse and misuse of antimicrobials over many decades have created significant and persistent selective pressure for the development of antimicrobial resistance throughout the world.
Previous versions of the bill proposed reauthorizing a task force on antimicrobial resistance and establishing an advisory board of experts as well as an office on antimicrobial resistance reporting to the secretary of health and human services.
The book includes various aspects of antimicrobial resistance including epidemiology, clinical impact of resistance, in vitro antimicrobial susceptibility testing, emerging resistance in Mycobacterium tuberculosis, fungi, and research questions for future development.
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EUROPEAN Food Safety Authority (EFSA) has launched detailed guidelines on new harmonised European Union (EU)-wide tests for detecting antimicrobial resistance to salmonella in fowl, turkeys and pigs, plus campylobacter in broilers.
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CAHFSE was designed to enhance two existing USDA programs that periodically assess farm-animal health and antimicrobial resistance: the National Animal Health Monitoring System (NAHMS) and the National Antimicrobial Resistance Monitoring System (NARMS).
At the body's session last week in Rome, where some 120 countries participated, Codex "tentatively" agreed to a task force addressing antimicrobial resistance.

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