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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 ?
In this study, the fluoroquinolone-resistant strains also exhibited a high prevalence of cross-resistance to other antibiotics, and this may be explained in part by the multidrug resistance of recurrent P aeruginosa in CSOM.
jatrophane diterpenes from Euphorbia spp, as modulators of multidrug resistance in cancer therapy.
Effects of the multidrug resistance modulator HZ08 on the apoptosis pathway in human chronic leukaemia cell line K562/A02," Arzneimittel-Forschung, vol.
Multidrug Resistance and Plasmid Patterns of Escherichia coli O157 and Other E.
Multidrug resistance inhibition by antisense oligonucleotide against MDR1/mRNA in P-glycoprotein expressing leukemic cells.
Conclusion: According to the present findings, future studies should investigate alternative pathways of multidrug resistance in order to arrive at a better understanding of treatment failure in lymphoma patients.
6%) patients with clinically confirmed multidrug resistance out of total number of operated patients.
Their topics include genetic and cellular multiple drug resistance in a diagnostic and therapeutic strategy in acute leukemia in children and adults, herb-drug interactions and implication in drug monitoring, bacteriophage therapies and enzybiotics as novel solutions to antibiotic resistance, nutrition and tuberculosis, reversing multidrug resistance by the isoquinoline alkaloid glaucine, and finding the genetic solution for cancer in the mechanism of taxol cytotoxicity.
2001), rates of multidrug resistance were demonstrated to be higher among males (10.
Multidrug resistance (MDR) is the cause of treatment failure in an estimated 90% of patients with metastatic cancer [1].
This study ("Antimicrobial resistance profiles and clonal relatedness of canine and feline Escherichia coli pathogens expressing multidrug resistance in the United States," Journal of Veterinary Internal Medicine, 2010) emphasizes the need to understand that MDR isolates are not only resistant to many drugs; but the level of resistance to those drugs is very high and thus might not be overcome by increasing doses, nor combination antimicrobial therapy.

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