Stochastic Indicator

Trading with Stochastic indicator involves the following signals:


Stochastic lines cross — indicates trend change.
Stochastic readings above 80 level — currency pair is overbought,
Stochastic staying above 80 level — uptrend is running strong.
Stochastic exiting 80 level downwards — expect a correction down or beginning of a downtrend.
Same for readings below 20 level — currency pair is oversold,
staying below 20 — doentrend is running strong,
exiting upwards above 20 — expect an upward correction or a beginning of an uptrend.




The idea behind Stochastic indicator


The main idea behind Stochastic indicator according to its developer, George Lane, lies in the fact that rising price tends to close near its previous highs, and falling price tends to close near its previous lows.


How to interpret Stochastic indicator


Stochastic is a momentum oscillator, which consists of two lines: %K - fast line, and %D - slow line. Stochastic is plotted on the scale between 1 and 100.
There are also so called "trigger levels" that are added to the Stochastic chart at 20 and 80 levels. Those lines suggest when the market is oversold or overbought once Stochastic lines pass over them.


How to trade with Stochastic indicator


Let’s look at three methods of trading with Stochastic indicator.


Method 1. Trading Stochastic lines crossover


This is the simplest and common method of reading signals from Stochastic lines as they cross each other. Stochastic %K and %D line work similar to moving averages and:
when %K line from above crosses %D line downwards traders open Sell orders.
when %K line from below crosses %D line upwards traders open Buy orders.


Stochastic lines crossovers that happen above 80% level and below 20% level are treated as strongest signals, compare to crossovers outside those levels.


Traders may choose sensitivity of their Stochastics. The smaller the Stochastic parameters, the faster it will react to market changes, the more crossovers will be shown.


Sensitive Stochastic (for example 5, 3, 3) is useful for observing rapidly changing market trends. But because it is too choppy it should be traded in combination with other indicators to filter out Stochastic signals.



Method 2. Trading Stochastic oversold/overbought zones


Stochastic by default has 80% level, above which market is treated as overbought, and 20% level, below which market is considered oversold.


It is important to remember that while in sideways moving market a single Stochastic lines crossover that occur above 80% or below 20% will most of the time result in a fast predictable trend change, in trending market could mean just nothing. When price is trending well, Stochastic lines may easily remain in overbought/oversold zone for a long period of time while crossing there multiple times.


That’s why a method of trading overbought/oversold zones stands up. The rules here are to wait until Stochastic lines after being in overbought/oversold zone come out from it. E.g. When stochastic was trading for some time in overbought zone – above 80% level, traders wait for the lines to slide down and eventually cross 80% level downwards before considering to take Short positions. Opposite for Long positions: wait till Stochastic lines come into the oversold zone (below 20% level); wait further until Stochastic lines eventually cross 20% level upwards; initiate a buy order once Stochastic lines are firmly set, e.g. a trading bar is closed and Stochastic lines cross over 20% mark is fixed.



Method 3. Trading Stochastic divergence


Traders are looking for a divergence between Stochastic and the price itself. At times when the price is making new lows while Stochastic produces higher lows creates dissonance in the picture. It is called divergence. Divergence between price and Stochastic readings suggest a forming weakness of a main trend and therefore its possible correction.



Full versus Fast versus Slow stochastic


Full Stochastic inidcator has 3 parameters, like: Full Stoch (14, 3, 3), where the first and the last parameters are identical to those found in Fast and Slow Stochastic:
the first parameter is used to calculate %K line, while the last parameter represents the number of periods to define %D - signaling line.


The difference between Full and other Stochastics lies in the second parameter, which is made to add smoothing qualities for %K line. Applying this smoothing factor allows Full Stochastic be a bit more flexible for chart analysis.


Stochastic indicators formulas


Full Stochastic Formula



Fast Stochastic Formula



Slow Stochastic Formula


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Posted By marykeating : 31 August, 2020
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