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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 ?
Improvements were also noted in hemodynamic variables, including mean pulmonary pressure, cardiac index and pulmonary vascular resistance, and in WHO functional class status.
Although it ejects the same blood volume as the LV, the RV generates about one-sixth of its work and pressure, because the pulmonary vascular resistance is only about 15% of systemic vascular resistance (SVR).
Children with ASD typically have normal pulmonary vascular resistance, and generally endure increased pulmonary blood flow which may exceed twice the systemic blood flow.
One study showed that treatment with bosentan was safe and led to improvements in pulmonary vascular resistance and other measures, Dr.
The appearance of cyanosis in a patient who initially was acyanotic and had a left-to-right shunt suggests the development of a markedly increased pulmonary vascular resistance leading to significant right-to-left shunting.
The new cardiac graft will have a normal-sized right ventricle that may fail when exposed to the increased workload of a preexisting elevated pulmonary vascular resistance (PVR).
Secondary considerations were to confirm that inhaled NO generated by the system reduces pulmonary vascular resistance (PVR) in patients with reversible pulmonary hypertension and contains levels of NO2 well below the upper level of acceptable exposure.
21 in order to assure increased pulmonary vascular resistance and help balance pulmonary and systemic blood flow in patients with single ventricle physiology.
Suspected PAH was defined as mean pulmonary arterial pressure (mPAP) greater than 25 mm/Hg, pulmonary capillary wedge pressure (PCWP) less than 15 mm/Hg, and pulmonary vascular resistance (PVR) greater than 3 Wood units.
Secondary considerations are to confirm that inhaled NO generated by the system reduces pulmonary vascular resistance (PVR) in patients with reversible pulmonary hypertension and contains levels of Nitrogen Dioxide (NO2) well below the upper level of acceptable exposure.
Persistent pulmonary hypertension of the newborn is a cardiopulmonary disorder that is characterized by increased pulmonary vascular resistance and systemic arterial hypoxemia.

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