Many people ask about STO and how to use it, but actually, before learning how to use it, you should first understand what the Stochastic Oscillator is. Because once you understand the basics, applying it in practice will be much more effective.

It's easier than you think. STO is just an indicator in the Momentum group that shows where the latest closing price is relative to the highest and lowest prices over a 14-period span. The value ranges only between 0 and 100.

However, why has the STO been used for over 70 years, from the late 1950s until now? Because it can tell you many things, such as when the price is rising, the closing price tends to be near the high, making the STO approach 100. Conversely, when the price is fluctuating, the closing price tends to be near the low, making the STO approach 0.

Actually, the most important part of the Stochastic Oscillator is that it has 2 lines: %K, which shows the indicator value, and %D, which is a 3-day moving average of %K. The calculation isn't complicated—just look at how far the closing price is from the lowest point relative to the high-low range, then multiply by 100 to get a percentage.

There are many ways to use the STO. The first is to identify trends: when %K is above %D, it indicates an uptrend. Conversely, when %K is below %D, it indicates a downtrend. However, this method works well only in the short term.

The most popular method is to determine whether the price is overbought or oversold. When %K exceeds 80, it indicates overbought conditions, meaning the price is quite high. Conversely, when %K drops below 20, it indicates oversold conditions, meaning the price is quite low.

Another interesting method is using the Stochastic to identify reversal points. When %K is rising but the price is slowing down, it suggests momentum is weakening and a reversal to a downtrend might occur. Conversely, when %K is falling but the price is slowing its decline, it may reverse to an uptrend.

Most importantly, do not rely solely on STO because it can give false signals frequently. It should be used together with other indicators, such as EMA to identify the main trend, and then use the Stochastic to confirm buy or sell points, or combine it with RSI to confirm signals at extreme zones.

Using STO with MACD also works well. When the stochastic enters overbought or oversold zones, check if the MACD crosses the Signal Line. If both happen simultaneously, the signal becomes stronger.

The main point is that the Stochastic Oscillator is a good tool, but it must be used correctly. Adjusting parameters, choosing appropriate timeframes, and combining it with other filtering tools will help STO perform more accurately. Remember, no indicator is 100% perfect. But understanding the basics and using it wisely can increase your chances of successful trading.