This article is from the Glossary of Technical Analysis Terms.
The Parabolic is a Time/Price system for the automatic setting of stops. The stop is both a function of price and of time. The system allows a few days for market reaction after a trade is initiated after which stops begin to move in more rapid incremental daily amounts in the direction the trade was initiated. For example, when a long position is taken the stop will move up regardless of price direction. However, the distance that the stop moves up is determined by the favorable distance the price has moved. If the price fails to move favorably within a certain period of time, the stop reverses the position and begins a new time period.
The Point and Figure (PF) charting method is a technique that has been used for many years in analyzing the variations in prices of stocks and commodities. There are several types of PF charting methods. Some employ trend lines, resistance levels, and various other additions to the chart. In this study, we shall be concerned with only daily reversal type charts. The principal advantage of a PF chart is that it is much easier to read and interpret than other types of charts. All the small, and often confusing, price movements are eliminated, and only the most important features of the price action remain. It would be reasonable to think of this method as a filter that (hopefully) allows only meaningful information to enter the chart and ultimately the decision process. Two basic symbols are used:
X Denotes the continuance of an increase in price and is always "stacked" in the vertical direction.
O Denotes the continuance of a decrease in price and is always "stacked" in the vertical direction.
While prices are rising X's are used. When falling, O's are used. They are always plotted on rectangular grid graph paper such that columns of X's and O's alternate. A Point and Figure chart is characterized by the specification of two parameters: box size and reversal number. The box size dictates the price range associated with a particular box (cubical area within the grid), while the reversal number specifies the conditions which terminate a column of X's and begin a column of O's and vice-versa.
Price Patterns are formations which appear on commodity and stock charts which have shown to have a certain degree of predictive value. Some of the most common patterns include: Head & Shoulders (bearish), Inverse Head & Shoulders (bullish), Double Top (bearish), Double Bottom (bullish), Triangles, Flags and Pennants (can be bullish or bearish depending on the prevailing trend).