| MAR 1993
Put Volume Indicator by John Bollinger
Put Volume Indicator by John Bollinger Although it has been mined for many years, one of the richest veins in technical analysis remains the sentiment area. Here, money manager and market analyst John Bollinger discusses one such indicator. The essential idea behind all sentiment work is that the road less traveled is likely to be the more profitable one. By studying and monitoring the ebb and flow of speculative sentiment, the savvy investor should be able to determine when to veer off the more congested trading path to explore new territory outside the accepted norm — often known as contrary philosophy. The concept of contrarian investment, known as the theory of contrary opinion, is vital to capital preservation. This theory was put forth in its current form in The Art of Contrary Thinking by Humphrey Neill, whose work has been carried on by others, in particular James Fraser of Fraser Capital, whose annual Contrary Opinion Forum and book catalog of investment literature are both highly regarded. To be a contrarian, you must first know the direction that sentiment is running. Many measures have been proposed to monitor sentiment over the years, ranging from the outrageous (for example, varying skirt lengths for women or Super Bowl victors) to the logical (for example, index futures premiums). Some of the most interesting modern tools have come from the arena of listed options trading. Market analyst Martin Zweig first proposed that the put/call ratio (Formula1, ""Formulas"" sidebar) should be used to monitor market sentiment; the idea was that extremes in the market would be reflected in options activity, so that too many puts would be bought at bottoms and too many calls would be bought at tops.
by John Bollinger
Technical Analysis of STOCKS & COMMODITIES
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