If you chart the pattern of movement of the stock market, you’ll find that it isn’t an orderly pattern. The changes move in different directions as traders react to information that may affect a sector or the economy as a whole. Although the pattern appears chaotic, traders still need to analyze it in order to figure out when to get in or out. One method of creating sense out of the seeming chaos is by using oscillators.
Oscillators are indicators used to analyze if a stock has been overbought and subject to downside movement; or oversold and a target for surprise upside movement. An oscillator is most useful when its value gets close to either the extreme upper limits or extreme lower levels. If the value is at the high end, a stock has been overbought. When the value nears the lowest levels, then the stock is oversold. Oscillators are typically used for identifying short-term movements and require on a lot of volatility and liquidity to be a good evaluative tool.
They can also be used to analyze divergences and crossovers that use multiple moving averages. Understanding divergences means understanding the Relative Strength Index (RSI). The RSI measures the strength of a stock by comparing the number of days a stock finishes up with the number of days it finishes down. The RSI is used as the oscillator when analyzing divergence.
There are two types of divergence. A bullish divergence happens when a stock hits a low high price and the RSI indicator makes a higher low. A bearish divergence develops when the stock hits a new high and the RSI makes a lower low.
A crossover is the point on a stock chart when a stock and the oscillator intersect. Crossovers are used to forecast the future movements in the price of a stock.
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