Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia.
Related to Resistance: voltage, electrical resistance, resistor


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 ?
Those episodes are quite diverse: the Russian rebellion of 1905; the German public's resistance to the French occupation of the Ruhr in 1923; India's agitation against British colonialism in 1930-31; Danish resistance to the Nazi occupation in World War II; the civic strike against the dictatorship of Gen.
The first 6 chapters highlight modes of action and resistance for antimicrobial agents, history of usage, susceptibility testing, antimicrobial-drug resistance detection methods, dosing schedules, and mechanisms that lead to the spread of bacterial resistance.
However, if carbon black is present more in the NR phase in NR blends, then the crack growth resistance is better.
CRUSHING RESISTANCE At the crux of the nevirapine dilemma is HIV's skill at developing resistance to antiretroviral drugs.
A proprietary compatibilizer used with the talc reinforcement is key to the material's excellent scratch resistance of 15N with no stress whitening, according to the Ford five-finger scratch test.
The patients' baseline viral genotypes had multiple mutations associated with stavudine resistance.
But with d4T plus 3TC, if you get resistance and viral rebound, usually you only get resistance to the 3TC and less likely to d4T, which has a different genetic barrier to viral resistance.
On the opposite end of the continuum, the heavier the resistance used, the greater the total number of MUs that have to be recruited -- which can only result in a slower speed of movement.
Since clinical data were not available, only combined (primary plus acquired) drug resistance rates were analyzed.