What is a 'Technical Indicator'

Technical indicators are mathematical calculations based on the price, volume, or open interest of a security or contract. By analyzing historical data, technical analysts use indicators to predict future price movements. Examples of common technical indicators include Relative Strength Index, Money Flow Index, Stochastics, MACD and Bollinger Bands®.

BREAKING DOWN 'Technical Indicator'

Technical indicators, also known as "technicals", are focused on historical trading data, such as price, volume, and open interest, rather than the fundamentals of a business, like earnings, revenue, or profit margins. Technical indicators are commonly used by active traders, since they're designed to analyze short-term price movements, but long-term investors may also use technical indicators to identify entry and exit points.

[Technical indicators are powerful tools that you can use to turn patterns into actionable trading plans. If you want to continue learning about technical analysis, from professional trainers at your own pace, check out Investopedia Academy's Technical Analysis Course]

There are two basic types of technical indicators:

  1. Overlays - Technical indicators that use the same scale as prices are plotted over the top of the prices on a stock chart. Examples include moving averages and Bollinger Bands®.
  2. Oscillators - Technical indicators that oscillate between a local minimum and maximum are plotted above or below a price chart. Examples include the MACD or RSI.

Traders often use many different technical indicators when analyzing a security. With thousands of different options, traders must choose the indicators that work best for them and familiarize themselves with how they work. Traders may also combine technical indicators with more subjective forms of technical analysis, such as looking at chart patterns, to come up with trade ideas. Technical indicators can also be incorporated into automated trading systems given their quantitative nature.

Examples of Technical Indicators

The following chart shows some of the most common technical indicators, including moving averages, the relative strength index (RSI), and the moving average convergence-divergence (MACD).

Chart showing technical indicators.

In this example, the 50- and 200-day moving averages are plotted over the top of the prices to show where the current price stands relative to its historical averages. The 50-day moving averages is higher than the 200-day moving average in this case, which suggests that the overall trend has been positive. The RSI above the chart shows the strength of the current trend - a neutral 49.07 in this case - and the MACD below the chart shows how the two moving averages have converged or diverged - slightly bearish in this case.

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