Technical Analysis of Stocks and Trends Definition

investopedia.com:

Investopedia / Jessica Olah

Technical analysis is the study of historical market data, including price and volume. Using insights from market psychology, behavioral economics, and quantitative analysis, technical analysts aim to use past performance to predict future market behavior. The two most common forms of technical analysis are chart patterns and technical (statistical) indicators.

Technical analysis is a blanket term for a variety of strategies that depend on interpretation of price action in a stock. Most technical analysis is focused on determining whether or not a current trend will continue and, if not, when it will reverse. Some technical analysts swear by trendlines, others use candlestick formations, and yet others prefer bands and boxes created through a mathematical visualization. Most technical analysts use some combination of tools to recognize potential entry and exit points for trades. A chart formation may indicate an entry point for a short seller, for example, but the trader will look at moving averages for different time periods to confirm that a breakdown is likely.

The technical analysis of stocks and trends has been used for hundreds of years. In Europe, Joseph de la Vega adopted early technical analysis techniques to predict Dutch markets in the 17th century. In its modern form, however, technical analysis owes heavily to Charles Dow, William P. Hamilton, Robert Rhea, Edson Gould, and many others—including a ballroom dancer named Nicolas Darvas. These people represented a new perspective on the market as a tide that is best measured in highs and lows on a chart rather than by the particulars of the underlying company. The diverse collection of theories from early technical analysts were