Moving Averages: The Trader's Most Used Tool
Moving Averages in Forex Trading
Moving averages are among the oldest and most widely used technical indicators in financial markets. They smooth out price data to create a single flowing line, making it easier to identify the direction of a trend and filter out the "noise" of short-term price fluctuations.
Despite their simplicity, moving averages are incredibly versatile. They can be used as dynamic support and resistance levels, as trend filters, and as the basis for more complex indicators and trading systems.
Types of Moving Averages
There are several types of moving averages, but two are most commonly used in forex trading:
- Simple Moving Average (SMA) — calculates the average closing price over a specified number of periods. For example, a 20-period SMA on a daily chart calculates the average of the last 20 daily closing prices. All periods are weighted equally.
- Exponential Moving Average (EMA) — gives greater weight to more recent price data, making it more responsive to current price action. Traders who need faster signals prefer the EMA; those who want a smoother, less reactive line prefer the SMA.
Common Moving Average Settings
Different traders use different settings depending on their trading style. The most commonly used moving averages are:
- 20 EMA — short-term trend; popular among day traders
- 50 SMA — medium-term trend; widely watched by swing traders and institutions
- 100 SMA — intermediate trend
- 200 SMA — long-term trend; one of the most important levels on any chart
The 200-day SMA in particular is watched by institutional players worldwide. Price trading above the 200 SMA is generally considered bullish; price trading below is bearish. Many professional traders will only take long positions when price is above the 200 SMA.
Moving Average Crossovers
A popular and widely recognised signal is the moving average crossover. This occurs when a faster moving average crosses above or below a slower one. The Golden Cross — when the 50 SMA crosses above the 200 SMA — is considered a bullish signal. The Death Cross — when the 50 SMA crosses below the 200 SMA — is considered bearish.
While crossovers can be powerful signals, they are lagging indicators — they confirm a trend that has already begun rather than predicting a new one. Always use them in conjunction with other forms of analysis.
Moving Averages as Dynamic Support and Resistance
In strong trends, moving averages can act as dynamic support or resistance. During an uptrend, pullbacks to the 20 EMA or 50 SMA often provide high-quality buying opportunities. During a downtrend, rallies to these levels offer short-selling opportunities. This application of moving averages is used extensively by professional trend-following traders.
Summary
Moving averages are a foundational tool that every forex trader should master. In the next lesson, we will explore oscillator indicators — specifically the RSI and MACD — which help identify momentum and potential reversals.