| MAY 1990
Ease of movement by Richard W. Arms Jr.
Ease of movement by Richard W. Arms Jr. On occasion it seems as though a stock or commodity must have discovered anti-gravity. It moves upward with little effort. Such a move is characterized by increasing volume but similarly increasing price spread on the upside, and the intervening pullbacks entail lighter volume and tighter price spreads. When such a stock or commodity is on the move there can be little trouble recognizing its strength. To short it at such a time can be hazardous to one's financial health! At other times, however, moving a stock higher is much like Sisyphus trying to roll his boulder up a hill. Every attempt is met with heavy resistance. Such action is easily recognized if one pays attention not only to price action but volume. Each advance is met by resistance, causing narrow trading ranges on comparatively heavy volume, while each decline is done on relatively light volume compared with the trading range. Note that the key word is ""comparative."" Volume is not the whole story. It must be viewed in relation to trading range. What better way is there than Equivolume charting to view the relationship? This method of charting places volume rather than time on the horizontal axis, so that each day is represented by a box rather than by a line as in the traditional bar-charting technique. The shape of the box generated is a visual representation of the relationship between price range and volume. Tall, thin rectangles represent large movement on comparatively light volume, while short wide boxes represent small price movement compared to volume.
by Richard W. Arms, Jr.
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