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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 ?
Development of hypertension in animals with reduced total peripheral resistance.
Elevated peripheral resistance has been reported in populations exposed to arsenic-contaminated drinking water and in animals treated with arsenite (Carmignani et al.
The anger group, compared to the fear group, reacted with more pronounced increases in heart rate, cardiac output, stroke volume and contractility; but with a significant decrease in total peripheral resistance.
However, we believe that the endocrine paradox of heart failure is predominantly attributable to peripheral resistance to the biological actions of CNHs at the receptor level and, especially, at the postreceptor level.
The underlying hemodynamic mechanisms can be attributed to an increase in total peripheral resistance induced by an increased tone of the arterioles with both components and the effect of crataegus is intensified by an additional direct positive action on cardiac performance.
Adults who practice transcendental meditation show a marked decrease in total peripheral resistance while meditating, as well as an increase in cardiac output and stroke volume.
How can the peripheral resistance of arteries be controlled?
Hypertensives without PH showed a significant decrease in total peripheral resistance in response to head-up tilt (p = 0.
Cardiac output (CO), peripheral resistance, and other cardiovascular parameters can be measured non-invasively with high accuracy using impedance cardiovasograph (Nivomon, L and T Medical's).
There is also a modest lowering of blood pressure from aerobic exercise due to the decrease in total peripheral resistance (19).
If the endothelium becomes deficient in the production of NO, its total peripheral resistance (TRP) will increase.