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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 ?
Molecular characterization of an antibiotic resistance gene cluster of Salmonella typhimurium DT 104.
Variation in clonality and antibiotic resistance genes among multiresistant Salmonella enterica serotype Typhimurium phage type U302 (MR U302) from humans, animals and foods.
x] minima involving the 7644 [ohm] contact resistance of probe 6 were much noisier and narrower, and shifted to smaller magnetic fields.
6] under "proper" 4TP balance conditions using different internal resistance values of the combining network when measuring 10:1 resistance ratios.
In a study by Young and Bilby using a barbell half-squat exercise (knee angle at 90 degrees) a "fast" group was instructed to lower the resistance slowly, then explode upward as fast as possible.
Kaneko and colleagues worked out a task that involved lifting a weight as quickly as possible among subjects who trained with a resistance of either 0, 30, 60, or 100% of maximum isometric strength.
Philips Semiconductors is already working on samples of the next generation of TrenchMOS devices which will have a maximum resistance specification of 6 milliOhms and typical real life values of 4.
By combining logic and low resistance power devices in a single package, SmartMOS devices will cease to be specialist product and become a very cost-effective replacement for mechanical relays in a large number of applications, in automotive, domestic and industrial markets.
Antimicrobial resistance and spread of class 1 integrons among Salmonella serotypes.
Comparison of gyrA mutations, cyclohexane resistance, and the presence of class 1 integrons in Salmonella enterica from farm animals in England and Wales.
In most commercial PC HgCdTe detectors, the detector segments, isolated by cutlines, are connected in series to increase the resultant resistance of the detector.
For three countries (Iceland, Finland, and Sweden), the lag time between antibiotic sales data and resistance rates was 0.