RSI, MACD and Bollinger Bands: A Simple Guide for Beginners

Technical indicators are tools that turn price data into lines, bands or bars. They help you see things that are hard to notice on a plain chart, such as the strength of a move or a change in volatility. Bitvyl charts offer 32 indicators. Three of the most popular are RSI, MACD and Bollinger Bands.

This guide explains what each of these three indicators measures, the most common settings, how to combine them without filling your screen with lines, and their limits. You do not need advanced math to use them. But you do need to understand what they can and cannot tell you.

RSI: measuring momentum

RSI stands for Relative Strength Index. It compares the size of recent up moves with the size of recent down moves. The result is a single line that moves between 0 and 100. It appears in a separate panel below the price chart.

• Common setting: 14 periods. On a 1-minute chart, that means the last 14 candles.
• Above 70: the market is often called "overbought". Prices have risen fast.
• Below 30: the market is often called "oversold". Prices have fallen fast.
• Around 50: there is no strong momentum in either direction.

How traders use RSI

A common idea is that an overbought market may fall and an oversold market may rise. But be careful. In a strong trend, RSI can stay above 70 or below 30 for a long time while the price keeps moving in the same direction. Selling only because RSI is above 70 can lead to many losses in a strong uptrend.

Another way to use RSI is as a filter. For example, some traders only look for Buy trades when RSI is above 50, and only look for Sell trades when RSI is below 50. This keeps them on the side of the current momentum.

MACD: measuring trend and changes in momentum

MACD stands for Moving Average Convergence Divergence. It is built from two exponential moving averages (EMAs) of the price, one fast and one slow.

• Common setting: 12, 26, 9.
• The MACD line is the 12-period EMA minus the 26-period EMA.
• The signal line is a 9-period EMA of the MACD line.
• The histogram shows the distance between the MACD line and the signal line, as bars.

How traders use MACD

• When the MACD line crosses above the signal line, momentum is turning up.
• When it crosses below the signal line, momentum is turning down.
• When the MACD line is above zero, the fast average is above the slow average. This usually means an uptrend. Below zero usually means a downtrend.
• When the histogram bars get smaller, the current move is losing strength.

MACD is based on moving averages, so it reacts after the price has already moved. It is better at showing the direction of a trend than the exact moment of a turn.

Bollinger Bands: measuring volatility

Bollinger Bands are drawn directly on the price chart. They have three lines:

• The middle band: a 20-period simple moving average.
• The upper band: the middle band plus 2 standard deviations.
• The lower band: the middle band minus 2 standard deviations.

"Standard deviation" is a measure of how much the price moves away from its average. You do not need to calculate it. Just remember this: when the market is active, the bands get wider. When the market is quiet, the bands get narrower.

How traders use Bollinger Bands

• A squeeze: when the bands become very narrow, the market is quiet. A stronger move often follows, but the bands do not tell you the direction.
• Touching a band: a touch of the upper band is not an automatic Sell signal. In a strong uptrend, the price can move along the upper band for many candles.
• Return to the middle: in a market that moves sideways, prices often move from one band back toward the middle band.

How to combine indicators without overload

Many beginners add five or six indicators to one chart. The screen becomes full of lines, and the signals start to disagree. This usually creates confusion, not confidence.

A better approach is to give each indicator one job:

Here are three simple rules:

1. Use two or three indicators at most. More indicators rarely add new information.
2. Avoid indicators that measure the same thing. RSI and Stochastic, for example, are both momentum oscillators. Using both is like asking the same question twice.
3. Decide the rules before you trade. Write them down. Do not look for an indicator that agrees with a trade you already want to open.

An example of a combined setup

This is only an illustration, not a recommended strategy. Imagine you trade with a 5-minute expiration on a 1-minute chart:

• The price falls and touches the lower Bollinger Band.
• RSI is below 30 and starts to turn up.
• A green candle closes back inside the bands.
• On a 5-minute chart, MACD is above zero, so the larger direction is up.

All three tools point in the same direction, so you may consider a Buy trade. If even one of them disagrees, you skip the trade. Skipping trades is part of a good method. To read the candles in this setup, see our guide on how to read candlestick charts.

Limitations you should know

Indicators are useful, but they have clear limits:

• They are calculated from past prices. They do not know the future. Most of them react after the price has moved.
• They give false signals. RSI can look oversold while the price keeps falling. A MACD crossover can reverse one candle later.
• Each one works better in certain conditions. Bollinger Band "return to the middle" ideas work better in sideways markets. Trend tools like MACD work better in trending markets.
• Short timeframes add noise. On very short charts, many signals are random.
• Changing settings until the past looks perfect is a trap. Settings that fit last week very well often fail next week.

Bitvyl also offers automatic signals. They are based on technical indicators: an EMA 9/21 crossover filtered by RSI 14 on 1-minute candles, plus RSI extremes. Like any indicator, these signals do not guarantee results. Treat them as information, not as instructions.

Your expiration time also matters. A setup that works for 5-minute trades may not work for 30-second trades. Read how to choose an expiration time for more on this.

Key takeaways

• RSI (14) measures momentum between 0 and 100. 70 and 30 are common levels, but strong trends can stay there.
• MACD (12, 26, 9) shows trend direction and changes in momentum, with some delay.
• Bollinger Bands (20, 2) show volatility. Wide bands mean an active market, narrow bands mean a quiet one.
• Give each indicator one job and use two or three at most.
• No indicator predicts the future. Test every setup before you trust it.

The best way to learn indicators is to watch them on a live chart. Open your free demo account, add one indicator at a time, and write down how the price behaves after each signal. Our guide on how to use a demo account shows you how to keep a simple trading journal for this.