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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 ?
All isolates were plasmid-free, and resistances were not transferable, either directly or by mobilization after a self-conjugative plasmid was introduced into the strains.
Java) with resistance to antimicrobial drugs has been isolated with increasing frequency from patients in Scotland, England, Wales, and the Channel Islands.
It is important to measure contact resistances at the approximate multi-series connection currents, and for each current direction.
Leakage resistances of all BPO connectors, the few BNC connectors, and all coaxial cables are greater than [10.
The results demonstrated a classic resistance-specific training effect: The heavier the resistances, the greater the increases in isometric strength, and the lighter the resistance, the greater the velocity.
The one indisputable fact about speed and resistance is that the heavier the resistance, the slower the athlete's speed, and the lighter the resistance, the faster his speed.
HAZEL GROVE, England--(BUSINESS WIRE)--June 24, 1996--Philips Semiconductors announced today a new process technology called TrenchMOS that enables solid state switches (power MOSFETs) to be created with on resistances that are half the typical values available at the moment, so that high currents can be switched in small packages.
Second, the only way to achieve the low resistances of around 8 milliOhms now offered by this new TrenchMOS technology has been to use two conventional 15 milliOhm devices in parallel and so manufacturers can now save on PCB space and costs with a two for one swap.
All antimicrobial drug resistances were transferred at once from each strain to E.
To the Editor: Infections caused by Salmonella are the primary cause of foodborne diseases; multidrug resistance to Salmonella enterica subsp.
Care should be taken when high signal gains (transfer resistances) are selected because the very high feedback resistor and a very small detector shunt resistance can produce a very high closed loop voltage gain.
Macrolide and fluoroquinolone (levofloxacin) resistances among Streptococcus pneumoniae strains: significant trends from the SENTRY Antimicrobial Surveillance Program (North America, 1997-1999).