New Concepts in Technical Trading Systems
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New Concepts in Technical Trading Systems by Welles Wilder
This classic book published in 1978, is the original source for six technical trading systems from Welles Wilder. Writing this book established Wilder's reputation as a respected technican. In more recent years, he has become better known for his promotion of the Delta Society, the Delta Phenomenon, and the Adam Theory
Wilder advises that of these the third is the most important, the easiest to learn and the hardest to do.
Wilder's treatement of money management is very brief and concise. It is summed up by two criteria: Don't margin over 15% of total capital on one commodity, or over 60% of total capital at one time. The balance is the emphasis on the the difficulty of recouping trade losses, and how the percent gain required to recoup a loss increases geometrically with the loss.
Development of technical systems and a method of selecting the right markets are the primary topics of the book. Wilder advises that he has never seen a technical system which CONSISTENTLY makes profits in all markets. Trend-following systems typically make consistent profits in DIRECTIONAL markets, but sustain consistent losses in NON-DIRECTIONAL markets. Since markets are typically non-directional 70+% of the time, and directional 30-% of the time (Wilder's figures), the answer to consistently profitable trading would appear to discover a way to define directional movement and translate this definition to a rating scale within known perameters. The most important contribution of the book (in both Wilder's opinion and my own) is its development of the Directional Movement Index, which is (his) answer to this problem. Other important contributions are the development of Parabolics and RSI (Relative Strength Index). All three are still widely use today, and are standard inclusions in most stock and futures analytical software packages. The other systems in the book are not well known, and are of lesser import.
The book is heavily oriented towards illustration of the calculations necessary for implementing the systems (including manual worksheets). This information (probably half the book) is superfluous today to those with analytical software. Limited guidance is offered on the interpretation and use of the indices. The systems are treated as stand-alone mechanical systems, rather than as tools for market evaluation and interpretation. The markets chosen for illustration of examples 'with large up and down price moves with little prolonged congestion (non-directional). Very little is given in terms of systems testing results. All ideas are, however, clearly explained and illustrated, and including difficult concepts such as momentum and directionality.
Hardcover: 142 pages
Publisher: Trend Research (June 1978)