Resistance

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Resistance

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).

resistance

An increased supply of a security. Compare support.

Resistance.

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 ?
While not proven as a first line agent, it has been shown to improve systemic vascular resistance if therapy with norepinephrine fails [4].
In our study, marathon runners had higher mean arterial pressure and systemic vascular resistance exploring the experience in marathon running.
Systemic vascular resistance is underestimated and therapeutic strategy is possible to be misleading in condition of significant artery pressure gradient.
Major threat with use of regional anesthesia is reduction in systemic vascular resistance and reversal of left to right shunt, which may results in hypoxia.
Mean Arterial Pressure and Systemic Vascular Resistance. In this abovementioned study [11] the gain of CO (L x [min.sup.-1] x [W.sup.-1]) during the first 30 s of exercise was similar between younger and older DM men and their age-matched controls.
Blood pressure, heart rate, cardiac output, stroke volume and systemic vascular resistance were measured at rest, during performing the arithmetic operations and during the response to the signal displayed on the monitor.
In a comparative study of propofol and ketamine infusion for cardiac catheterization procedure Oklu et al20 found a decrease in systemic vascular resistance with propofol leading to increased right to left shunting, whereas ketamine did not produce these changes.
During early septic shock systemic vascular resistance is usually elevated and cardiac output decreased.
Shortly after birth, systemic vascular resistance increases and pulmonary vascular resistance decreases.
Haemodynamic evaluation by transpulmonary thermodilution (PiCCOplus, Pulsion Medical Systems, Munich, Germany) under an infusion of noradrenaline at 0.4 [micro]gm.kg.[min.sup.-1] revealed the following values: cardiac output: 8.4 l.[min.sup.-1] (NV: 4 to 8 l.[min.sup.-1]), cardiac index: 3.46 l.[min.sup.-1].[m.sup.2] (NV: 2.5 to 4 l.[min.sup.-1].[m.sup.2]), systemic vascular resistance index: 1810 dyn.s.[cm.sup.-5].[m.sup.2] (NV: 1200 to 2000 dyn.s.[cm.sup.-5].[m.sup.2]), intrathoracic blood volume index: 762 ml.[m.sup.-2] (NV: 850 to 1000 ml.[m.sup.-2]), extravascular lung water index: 22 ml.[kg.sup.-1] (NV: 4 to 7 ml.
Pulmonary vascular resistance (Rp) and systemic vascular resistance (Rs) were calculated using the following formulas: Rp = mean pulmonary artery pressure--mean left atrium pressure / Qp, Rs = mean aortic pressure--mean right atrium pressure / Qs.

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