Stochastic oscillator
In this series of articles we will elaborate on the consideration of stock indicators — математических инструментов технического анализа, которые обеспечивают более полное представление о будущем движении цен на Forex currency market. Correct interpretation of indicator signals will help traders to be in the trend and make the most profit, but remember that this is only a description of the technical capabilities of the indicator, which requires adjustment on a case-by-case basis for the chosen trading strategy.
To date, developed a huge number of tools for technical analysis, in the following articles consider the most popular of them.
Stochastic Oscillator
Stochastic oscillator predicts a trend reversal with great accuracy, indicating the moments when the price reaches the "overbought" or "oversold" zones and comes close to the borders of the trading "corridor".
Stochastic indicator calculation formula
The stochastic oscillator is set by two parameters: the fast curve %K and the slow curve %D. Parameter %K is calculated using the following formula:
%K = (CLOSE — MIN (LOW (%K))) / (MAX (HIGH (%K)) — MIN (LOW (%K))) * 100
Where:
— CLOSE — сегодняшняя цена закрытия;
— MIN (LOW (%K)) — наименьший минимум за число периодов %K;
— MAX (HIGH (%K)) — наибольший максимум за число периодов %K.
The parameter %D is a moving average of %K and is calculated using the formula:
%D = SMA (%K, N)
Where:
— N — период сглаживания;
— SMA — простая скользящая средняя.
SMA = SUM (CLOSE (i), N) / N
Where:
— SUM — сумма;
— CLOSE (i) — цена закрытия текущего периода;
— N — число периодов расчета.
Thus, the oscillator analyzes the location of the closing price of the current candle or bar (depending on the type of chart) relative to the selected time period N.
Variation range стохастического осциллятора на графике — от 0% до 100%, при этом граничное значение 0% соответствует минимальной цене за определенный период N, а значение 100% — максимальной цене закрытия. Уровни в 20% и 80% определяют overbought areas and "oversold.
Interpretation of Stochastic trading signals
Stochastic Oscillator Reaching Critical Values indicates that the price change is rapid and a direction correction is expected in the near future.
Если линия %K пересекает %D сверху, то это формирует сигнал на продажу базовой валюты. Если линия %K пересекает линию %D снизу, то это сигнализирует об открытии длинной позиции по паре. Отметим, что сигналы покупки наиболее надежны в зоне от 0% до 20%, а сигналы продажи — в зоне от 80% до 100%.
A strong and reliable signal is divergence - divergence of the price chart and the oscillator chart. For example, when a new maximum is formed on the price chart and no maximum appears on the stochastic oscillator chart, such a situation is called a negative divergence and predicts a down-trend reversal. If the price decreases to a new low on the chart, but there is no such change on the oscillator chart, the situation is called a positive divergence, due to which a trend reversal is possible.
Using the Stochastic indicator
The stochastic oscillator is usually used on the non-breaking section to trade on short and medium term time intervals. Figure 1 shows the action of the stochastic oscillator Stoch (8,3,3) on the hourly chart of the USDCHF pair and clearly shows the negative divergence.
Fig. 1. Stoch oscillator (8,3,3).
In this example, the parameter %K ("fast stochastic") uses a period of 8 candles, the parameter %D ("slow stochastic") - a period of 3 candles. Your task is to - Choose the most optimal parameters of the stochastic oscillator to work on the time intervals of your choice.