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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 ?
Short films have enormous potential to reach a global audience and encourage people to think about how they can join the fight against antibiotic resistance," said Dr.
Global Surveillance: Surveillance data from more than 35 countries show that antibiotic resistance levels continue to rise globally.
The rise of antibiotic resistance is a global health crisis, and governments now recognize it as one of the greatest challenges for public health today," WHO chief Margaret Chan said in a statement, stressing that resistance was "reaching dangerously high levels in all parts of the world.
Obtaining surveillance data to determine and quantify the amount, type, and extent of antibiotic resistance in an area of interest such as a healthcare facility or geographic region
The research, which is published in PLOS ONE, found that a country's level of antibiotic resistance is not related to its wealth.
Andrew Miller, the chairman of the committee, said: "We're pleased that the prime minister has taken the opportunity just ahead of our report launch to reaffirm his commitment to action on antibiotic resistance, but publishing strategies and announcing reviews is not the same as dealing with the problem.
The report, ' Antimicrobial resistance: global report on surveillance' has revealed antibiotic resistance is apparent in seven different bacteria responsible for common, serious diseases such as bloodstream infections (sepsis), diarrhoea, pneumonia, urinary tract infections and gonorrhoea.
The researchers had identified subsets of Salmonella that seem to be more prone to acquiring antibiotic resistance.
In our method, we can determine bacterial antibiotic resistance in 10-12 minutes, while other methods take hours," Dr.
Research lead, Prof Adrian Walmsley from Durham University's School of Biological and Biomedical Sciences said: "It is a significant step forward in the understanding of antibiotic resistance.
He said that antibiotic resistance is "compromising the health of people around the world" and called on health officials to regulate the use of such drugs.

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