In
stock market
A stock market, equity market, or share market is the aggregation of buyers and sellers of stocks (also called shares), which represent ownership claims on businesses; these may include ''securities'' listed on a public stock exchange a ...
technical analysis
In finance, technical analysis is an analysis methodology for analysing and forecasting the direction of prices through the study of past market data, primarily price and volume. As a type of active management, it stands in contradiction to ...
, support and resistance are certain predetermined levels of the price of a
security
Security is protection from, or resilience against, potential harm (or other unwanted coercion). Beneficiaries (technically referents) of security may be persons and social groups, objects and institutions, ecosystems, or any other entity or ...
at which it is thought that the price will tend to stop and reverse.
These levels are denoted by multiple touches of price without a breakthrough of the level.
Support versus resistance
A support level is a level where the price tends to find support as it falls due to an increase in demand for the asset. This means that the price is more likely to "bounce" off this level rather than break through it. However, once the price has breached this level, by an amount exceeding some noise, it is likely to continue falling until meeting another support level.
A resistance level is the opposite of a support level. It is where the price tends to find resistance as it rises due to an increase in selling interest. Again, this means that the price is more likely to "bounce" off this level rather than break through it. However, once the price has breached this level, by an amount exceeding some noise, it is likely to continue rising until meeting another resistance level.
Traders use support and resistance levels in different chart patterns.
Reactive versus proactive support and resistance
Proactive support and resistance methods are "predictive" in that they often outline areas where price has not actually been.
They are based upon current price action that, through analysis, has been shown to be predictive of future price action. Proactive support and resistance methods include Measured Moves, Swing Ratio Projection/Confluence (Static (Square of Nine), Dynamic (Fibonacci)), Calculated Pivots,
Volatility Based, Trendlines and Moving averages, VWAP, Market Profile (VAH, VAL and POC).
[
Reactive support and resistance are the opposite: they are formed directly as a result of price action or volume behaviour. They include Volume Profile, Price Swing lows/highs, Initial Balance, Open Gaps, certain Candle Patterns (e.g. Engulfing, Tweezers) and OHLC.][
A price histogram is useful in showing at what price a market has spent more relative time. ]Psychological level In finance, psychological level, is a price level in technical analysis that significantly affects the price of an underlying security, commodity or a derivative. Typically, the number is something that is "easy to remember," such as a rounded-off n ...
s near round numbers often serve as support and resistance.[
]
Identifying support and resistance levels
Support and resistance levels can be identified by trend lines (technical analysis)
In finance, a trend line is a bounding line for the price movement of a security. It is formed when a diagonal line can be drawn between a minimum of three or more price pivot points. A line can be drawn between any two points, but it does not ...
. Some traders believe in using pivot point calculations.
The more often a support/resistance level is "tested" (touched and bounced off by price), the more significance is given to that specific level.
If a price breaks past a support level, that support level often becomes a new resistance level. The opposite is true as well; if price breaks a resistance level, it will often find support at that level in the future.
Psychological Support and Resistance levels form an important part of a trader's technical analysis. As price reaches a value ending in 50 (ex. 1.2050) or 00 (ex. 1.3000), people often see these levels as a strong potential for interruption in the current movement. The price may hit the line and reverse, it could hover around the level as Bulls and Bears fought for supremacy, or it may punch straight through. A trader should always exercise caution when approaching 00 levels in general, and 50 levels if it has previously acted as Support or Resistance.
See also
*Top (technical analysis)
A chart pattern or price pattern is a pattern within a chart when prices are graphed. In stock and commodity markets trading, chart pattern studies play a large role during technical analysis. When data is plotted there is usually a pattern which n ...
*Trend line (technical analysis)
In finance, a trend line is a bounding line for the price movement of a security. It is formed when a diagonal line can be drawn between a minimum of three or more price pivot points. A line can be drawn between any two points, but it does not ...
*Bottom (technical analysis)
A chart pattern or price pattern is a pattern within a chart when prices are graphed. In stock and commodity markets trading, chart pattern studies play a large role during technical analysis. When data is plotted there is usually a pattern which ...
*Price discovery
In economics and finance, the price discovery process (also called price discovery mechanism) is the process of determining the price of an asset in the marketplace through the interactions of buyers and sellers.
Overview
Price discovery is diff ...
*Representativeness heuristic
The representativeness heuristic is used when making judgments about the probability of an event being representational in character and essence of a known prototypical event. It is one of a group of heuristics (simple rules governing judgment or ...
* Fibonacci retracement
References
Further reading
* John Murphy, Technical Analysis of the Financial Markets,
{{technical analysis
Chart overlays