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Moving average (MA)

Moving average (MA) is a commonly used in technical analysis (TA) as an indicator that helps smooth out price data over a specified period of time. It is used to identify trends, generate trading signals and provide support-resistance levels.

Definition: A moving average (MA) is calculated by taking the average price of a stock or an indicator over a specific number of periods. Each data point in the moving average is equally weighted and as new data becomes available, here the oldest data point is dropped and the newest one is included.


Types of Moving Averages:

  • Simple Moving Average (SMA): The simple moving average calculates the average price over a specified length of periods. It gives an equal weight to each period in the calculation.
  • Exponential Moving Average (EMA): The exponential moving average gives more weight to recent prices, making it more responsive to recent price changes. It uses a smoothing factor to place higher weight on recent data.
  • Weighted Moving Average (WMA): The weighted moving average assigns different weights to each data point in the calculation, typically giving more weight to recent prices.

Time Period: The time period used for calculating the moving average depends on the analyst's preference and the timeframe being analyzed. Common time length include 20, 50, 100 or 200 but it can vary depending on the analyst's strategy and/or present market conditions.

Interpretation: Moving averages are primarily used to identify trends and provide support-resistance levels. It suggests an uptrend when the price is above the moving average and while a price below the moving average indicates a downtrend. Moving average crossovers where shorter-term moving averages cross above or below longer-term moving averages that's are often used as trading signals.

Lagging Indicator: It is important to note that, moving averages are lagging indicators since they are based on past price data. They may not provide timely signals in rapidly changing markets or during periods of high volatility. So have to be more careful in the volatile market.

Multiple Moving Averages: Traders often use multiple moving averages simultaneously to generate more robust trading signals.
  • For example, a popular strategy involves using a shorter-term moving average (e.g. 20 or 50-period) and a longer-term moving average (e.g. 200-period) and considering the crossover of these two averages as a signal.

Moving Average Convergence Divergence (MACD): MACD is also a popular indicator derived from moving averages. It subtracts a longer-term EMA from a shorter-term EMA to generate trading signals based on the convergence and divergence of these two averages.

Therefore, moving averages are versatile indicators that can be applied to various markets and timeframes. Analysts often combine them with other technical analysis tools to develop their trading strategies. It is important to test and validate by other trading strategies before using it in live trading.

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