Stochastic is an oscillator that determines where the most recent
closing price is relative to its price range over a given time period.
It is one of the most popular oscillators that traders use in
range-bound market.
The indicator involves two lines:
As you can see in the formula, %K measures where the closing price is in relation to the price range over n period of time. If the lowest close over last periods is 0, highest high over last n periods is 100, and the closing price is 75, then %K = 75%, which means the price is close quite close to the highest high.
When Stochastic is over 80, the pair is considered to be overbought. If Stochastic is below 20, the pair is considered to be oversold. It works best in range-bound market. If the currency pair is in strong trend, the overbought/oversold levels offer limited value.
2. Crossovers
If the %K line crosses above the %D line, especially below the lower extreme of 20, a buy signal is generated. If the %K line crosses below the %D line, especially above the higher extreme of 80, a sell signal is generated.
In the above charts, six selling signals were generated in the
range-bound period of EUR/USD. Notice that Stochastic may stay above 80
when the up-trend went strong at later stage.
The oscillators are the best detectors of overbought and oversold conditions. When the market is ranging, traders can pay attention to the overbought/oversold levels of the oscillators, or the crossovers of the MACD lines and Stochastic lines. The signals from the oscillators are always few bars behind the prices. Traders should compare the current price with support/resistance levels and the indicators' signals, so as to make a better trading decision.
2. Bollinger bands
In range-bound market, Bollinger bands help to tell the future direction of the price movement, particularly when the price breaks through the bands or rebounces away from the bands. If the bands are getting wider towards one direction (either up or down) in a range-bound market, it means the price is moving more vigorously towards that direction, and it is getting higher volatility. Price may eventually break through that boundary. If the bands and the central line is moving parallel and keep a constant width, the price is more likely to retrace at the two bands.
3. Support/resistant levels
Resistant levels are formed by recent highs, and support levels are formed by recent lows. The more times the price hits the recent highs/lows, the stronger is the resistance/support levels. Traders can buy at support levels and sell at resistant levels, and should always set tight stop just below the support level or above the resistant level to prevent any severe loss with subsequent breakthroughs.
4. Candlestick patterns
There are three indications from the candlestick patterns: bearish, bullish or neutral. Traders should not place their trades solely base on candlestick patterns. A bearish pattern (like a bearish engulfing pattern) is only valid when it occurs near the resistance levels. If the price rises further after a Doji, and it breaks through a resistant level, the Doji is seen as a bullish signal.
The trend-lines indicate the direction of the trend and the support/resistant levels. Traders can buy at support level when the market is undergoing retracement, or can sell when the price falls below support level. On the other side, traders can sell at resistance level when the market re-bounces, or can buy when the price rises above the resistant level.
2. Fibonacci retracements
If the market is undergoing retracements, Fibonacci levels can estimate to which level the market is expected to resume its current trending direction. Traders can place orders near those Fibonacci levels.
3. Moving averages
Moving averages can tell the direction of the current trend and they can also act as support/resistant levels. If the price falls below a moving average support level, or it breaks above a moving average resistant level, it is a signal of reversal. The longer the period of the moving average, the more reliable is the signal.
4. Divergence of oscillators
Although the overbought/oversold levels of oscillators are of less use in trending market, the divergence of oscillators can indicate the future direction of the trend. When a divergence occurs, traders should pay attention to the trend-lines, moving averages and Fibonacci levels, to see if the retracements have caused any breakthroughs and confirms any reversal signals.
To conclude, traders shall not rely on only one technical analysis tool to make trading decisions. They shall consider the overall situation on the market and take references from different technical analysis tools. Even so, it does not mean that the more technical analysis tools they use, the more accurate are the decisions. In general, three to four references from different technical analysis tool groups would be enough.
The indicator involves two lines:
- %K
- %D which is a D-period moving average of %K
- %K = 100 [ (C - Ln) / (Hn - Ln) ]
- C = latest close, Ln = lowest close over last n periods, Hn = highest high over last n periods
As you can see in the formula, %K measures where the closing price is in relation to the price range over n period of time. If the lowest close over last periods is 0, highest high over last n periods is 100, and the closing price is 75, then %K = 75%, which means the price is close quite close to the highest high.
Applications of Stochastics:
1. Detect overbought/oversold levelsWhen Stochastic is over 80, the pair is considered to be overbought. If Stochastic is below 20, the pair is considered to be oversold. It works best in range-bound market. If the currency pair is in strong trend, the overbought/oversold levels offer limited value.
2. Crossovers
If the %K line crosses above the %D line, especially below the lower extreme of 20, a buy signal is generated. If the %K line crosses below the %D line, especially above the higher extreme of 80, a sell signal is generated.
Some Final Words about Technical Analysis
We have gone through some of the most common indicators in the previous articles. Traders may actually find that there are many other technical indicators in their charting software. There is no single indicator can do all the work, traders may pick a few of their favorites under different market situation.When the Market is Ranging
When the market is ranging, there are only two possibilities if the price hits the boundary: retrace or breakthrough the boundary. The two possibilities make up the two major trading strategies in range-bound market: to trade inside the range or to trade after the breakthrough.Technical indicators in Range-bound market
1. Oscillators (RSI, MACD, Stochastic)The oscillators are the best detectors of overbought and oversold conditions. When the market is ranging, traders can pay attention to the overbought/oversold levels of the oscillators, or the crossovers of the MACD lines and Stochastic lines. The signals from the oscillators are always few bars behind the prices. Traders should compare the current price with support/resistance levels and the indicators' signals, so as to make a better trading decision.
2. Bollinger bands
In range-bound market, Bollinger bands help to tell the future direction of the price movement, particularly when the price breaks through the bands or rebounces away from the bands. If the bands are getting wider towards one direction (either up or down) in a range-bound market, it means the price is moving more vigorously towards that direction, and it is getting higher volatility. Price may eventually break through that boundary. If the bands and the central line is moving parallel and keep a constant width, the price is more likely to retrace at the two bands.
3. Support/resistant levels
Resistant levels are formed by recent highs, and support levels are formed by recent lows. The more times the price hits the recent highs/lows, the stronger is the resistance/support levels. Traders can buy at support levels and sell at resistant levels, and should always set tight stop just below the support level or above the resistant level to prevent any severe loss with subsequent breakthroughs.
4. Candlestick patterns
There are three indications from the candlestick patterns: bearish, bullish or neutral. Traders should not place their trades solely base on candlestick patterns. A bearish pattern (like a bearish engulfing pattern) is only valid when it occurs near the resistance levels. If the price rises further after a Doji, and it breaks through a resistant level, the Doji is seen as a bullish signal.
When the Market is Trending
Trends occur when the market makes higher highs or higher lows (or lowers lows and lower highs). When the price is near the support/resistance levels in a trending market, there are only two possibilities for the price movement: to retrace or to keep going in the original trending direction.Technical indicators in Trending market
1. Trend-linesThe trend-lines indicate the direction of the trend and the support/resistant levels. Traders can buy at support level when the market is undergoing retracement, or can sell when the price falls below support level. On the other side, traders can sell at resistance level when the market re-bounces, or can buy when the price rises above the resistant level.
2. Fibonacci retracements
If the market is undergoing retracements, Fibonacci levels can estimate to which level the market is expected to resume its current trending direction. Traders can place orders near those Fibonacci levels.
3. Moving averages
Moving averages can tell the direction of the current trend and they can also act as support/resistant levels. If the price falls below a moving average support level, or it breaks above a moving average resistant level, it is a signal of reversal. The longer the period of the moving average, the more reliable is the signal.
4. Divergence of oscillators
Although the overbought/oversold levels of oscillators are of less use in trending market, the divergence of oscillators can indicate the future direction of the trend. When a divergence occurs, traders should pay attention to the trend-lines, moving averages and Fibonacci levels, to see if the retracements have caused any breakthroughs and confirms any reversal signals.
To conclude, traders shall not rely on only one technical analysis tool to make trading decisions. They shall consider the overall situation on the market and take references from different technical analysis tools. Even so, it does not mean that the more technical analysis tools they use, the more accurate are the decisions. In general, three to four references from different technical analysis tool groups would be enough.
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