Technical indicators are mathematical calculations on price and volume plotted on the chart to help you interpret the market. There are dozens, but three stand out for their popularity and usefulness: moving averages, the RSI, and the MACD. Mastering these three gives you a solid base without falling into the beginner’s mistake of filling the chart with coloured lines that contradict one another.
The moving average is the most basic and at the same time most useful indicator. It calculates the average price of a given number of periods and draws it as a line that smooths out market noise. A 200-period average shows the long-term trend; a 20-period one, the short-term trend. When the price is above its averages, the bias is bullish; when it is below, bearish. It is a simple compass to know which way “the wind is blowing”.
Moving averages also generate signals through their crossovers. The famous “golden cross” occurs when a fast average crosses above a slow one, a bullish signal; the “death cross” is the opposite. In addition, averages act as dynamic support and resistance: in an uptrend, the price often leans on its moving average before continuing. Many traders use two or three averages combined to read the trend’s structure at a glance.
The RSI (Relative Strength Index) is an oscillator that measures the speed and magnitude of price movements on a scale from 0 to 100. Traditionally, an RSI above 70 indicates the asset is “overbought” (the rise may be running out of steam) and below 30, “oversold” (the decline may be exhausting itself). It is a valuable tool for detecting when a move may be losing strength.
But the RSI has an even more powerful use: divergences. When the price sets a new high but the RSI does not follow and prints a lower high, a bearish divergence occurs, anticipating a possible correction. The bullish divergence is the reverse. These signals often precede important turns and are especially prized by more experienced traders.
The MACD (Moving Average Convergence/Divergence) combines the best of averages and oscillators. It consists of two lines —the MACD line and its signal line— and a histogram measuring the distance between them. When the MACD line crosses above the signal line, it is read as bullish momentum; when it crosses below, as bearish momentum. The histogram, as it grows or shrinks, shows whether that momentum is accelerating or fading.
The MACD also produces divergences with price, just like the RSI, and many traders use it precisely to confirm the strength of a trend. Its main virtue is that it gathers trend and momentum information in a single panel, which makes it very versatile. Its main flaw is that, being based on averages, it arrives with some delay: it confirms moves more than it anticipates them.
The key to using indicators is moderation and intelligent combination. A common mistake is piling up five or six indicators that measure the same thing, creating a false sense of confirmation. It is better to choose one trend indicator (a moving average) and one momentum indicator (RSI or MACD) that complement each other. Remember also that all indicators derive from price: they are a reflection, not a crystal ball.
Our recommendation is to start with a single moving average and the RSI, watch them for weeks on a pair you know, and only add complexity when you truly understand how they behave. Indicators do not make decisions for you; they organise information so that you can decide with better judgement. In disciplined hands they are a great ally; in impulsive hands, a source of noise.
Sources: Bank for International Settlements (BIS), central banks, official MetaQuotes (MetaTrader 5) documentation and regulatory bodies.
