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Welles Wilder is best known for his technical indicators – now  considered to 
be 
core indicators in technical analysis software. These  include Average True 
Range, the Relative Strength Index, Directional  Movement and the Parabolic 
Stop 
and Reverse.
He has written many articles on trading, appeared on numerous radio  and 
television programs, and conducted technical trading seminars in  Asia, 
Australia, Canada, USA, and Europe. He has also developed the  Delta market 
timing software, One Day at a Time. Around the world, there  are probably more 
traders using Mr. Wilder’s systems and methods than  any other discipline.
Part I : Who is J. Welles Wilder?
TJ: Please provide a background of yourself? What were you doing  before you 
become a trader? When and how did you get into trading?
It just so happens that I have had several careers. Between high  school and 
collage, I was an automobile mechanic and joined the Navy and  became an 
airplane mechanic. After the Navy, I went to North Carolina  State Collage (On 
the G.I. bill) and graduated with a degree in  Mechanical Engineering. After 
seven years of engineering (and building a  large Mobile Home Park on the 
weekends) I left engineering and got into  Real Estate and Land development.
Two other people and I built 1,035 apartments in five cities in North  Carolina 
and Virginia. I bought an airplane, learned how to fly it, and  made the rounds 
of the five projects about every day. When the  apartments were almost finished 
my two partners wanted to buy my third  of the projects.
In the mean time, I had become interested in trading commodities  because they 
are even more highly leveraged then like Real Estate. My  partners and I agreed 
on a fair price and suddenly, at 38 years old, I  had all the money I needed 
and 
nothing to do. So, I started to study the  art of Commodity Trading.
TJ: What was it like when you first started?
I made a lot of money in Silver because I had reason to believe that  Silver 
was 
going to increase in price. I can remember buying a contract  of Silver at 
$1.38 
an ounce. I think that was as low as it got.
TJ: How have you evolved as a trader?
I began to trade other commodities and I soon learned that one can  also lose 
money trading commodities. So I stopped trading and began to  get into 
technical 
analysis. This was in the early to mid seventies. The  only book I could find 
in 
the library about trading was written by a  man named Gold. Then I learned 
about 
a man in Wysetta, Minnesota who had  collected about everything in print on 
Technical Trading. For a small  price, he would send you several of his 
writings 
at a time and allowed  one to copy them before sending them back.
TJ: How long did it take before you considered yourself successful?
And how would you define success? My first real success in the  Commodities 
Industry was in 1978 when I wrote and self published my  first book, NEW 
CONCEPTS IN TECHNICAL TRADING SYSTEMS. Before I wrote  that book, there were 
just two basic totally automatic trading systems  to my knowledge. One was the 
MOVING AVERAGE and the other was Richard  Donchian’s WEEKLY RULE.
In the New Concepts book, I introduced four new automatic trading  systems. 
They 
were, The Parabolic Time/Price System, The Volatility  System (which introduces 
Average True Range) The Directional Movement  System, and the Swing Index 
System. The book also includes the first  momentum oscillator to put all 
commodities and Stocks on one scale. That  was called The Relative Strength 
Index or better known as the RSI. Over  the years, we have sold more than 
25,000 
copies worldwide. At $65.00 it  was also one of the highest priced books on 
trading.
Upon completing the book I ran a full page ad and an article on the  RSI in the 
June 1978 issue of what was then called Commodities Magazine.  This was just at 
the time that small computers were becoming available  and it seemed every 
trader in the world was looking for something to  program. We sold thousands of 
copies of the New Concepts book to these  people all over the world.
The result of this is that I suddenly became well known in about  every country 
that has commodity and Stock traders. In the meanwhile, I  developed an 
(automatic) visual trading system called The Reverse Point  Wave system. It 
worked equally well on stocks and commodities. To make a  long story short, I 
put on seminars and taught this system to traders  in about 10 different 
countries.
Probably, what contributed the most to my success over the years was  my 
ability 
to write advertising copy. That is quite unusual for a  Mechanical Engineer! I 
suppose that it was about this time that I  considered myself successful in my 
third career.
So how would I define success? I would say; by setting oneself a difficult goal 
and then achieving it.
TJ: What is the largest contributor to your success?
Determination, and being one of the best ad copywriters in the industry.
TJ: What do you trade?
I trade the 35 major US commodities, primarily, and next; Gold and Silver 
stocks 
and options.
TJ: What was your first trade like?
My first trade was in Silver and it was very profitable.
TJ: What was your best trade?
The one I remember the most was in the early seventies when I bought  $10,000 
worth of Silver options and sold then for $40,000 six months  later.
TJ: What was your worst trade?
Well, I hate to tell you this one. It proves that I’m not very smart  after 
all. 
In the Spring of 1999, I thought that Y2K was going to be a  problem. That was 
when my wife and I decided to live permanently at our  home in New Zealand. I 
thought that if there were problems, then Gold  would rise in price. So I 
bought 
1600 Gold options. About a week before  we left for New Zealand, Gold began to 
rise rapidly.
When I got to New Zealand I realized that I had forgotten to take a  new data 
disk. My office in North Carolina e-mailed me the value of my  options every 
day. When they reached two million dollars, I decided to  take profits. So I 
e-mailed my office manager to BUY 200 Gold options  every day. What I meant to 
say was SELL 200 Gold options every day.
When I found out my mistake a week later, I almost fainted. I  e-mailed him to 
SELL every option we had left the next day. To end this  story quickly, (I 
don’t 
much want to think about it!) I ended up just  about breaking even on the deal. 
That was certainly my worst trade;  which could have been my best trade, except 
for one word. . . BUY!
TJ: What methodology do you use?
I use the best trading system I ever developed. It’s called the Delta  Plus 
system. It makes over 100% a year, every year, trading eight  commodities. It 
is 
available only to members of The Delta Society  International. It uses, among 
other things the Volatility System and the  Parabolic Time/Price System.
TJ: Is that what you do now – you have a newsletter and you manage money?
What I do now is head up an organization I initiated in 1984 called  The Delta 
Society International. I write the monthly trading letter that  members 
receive. 
I do not manage money (except for myself!) We don’t  have space here to talk 
about The Delta Society. If interested, please  check out our web site. 
www.deltasociety.com
Part II : New Concepts in Technical Trading Systems
TJ: How did the book come about?
Where did you get the inspiration and ideas for the book? In the mid  
seventies, 
I had time to come up with a lot of new trading concepts. So,  I decided to do 
something that I had never done . . . write a book  about the best ones.
TJ: What is the central theme of the book?
Frankly, I don’t think there is one because each system has its own theme.
TJ: What makes it stand apart from other books?
I think it was the new concepts that were different from anything else in print 
that made it totally different from other books.
TJ: How could one get the most out of the book?
Read it slowly and carefully until you understand the concept for  each system. 
And understand what serious system developers have learned .  . . that the best 
system in the book (often overlooked) is the  Volatility System concept.
TJ: Can we talk a little bit about the RSI?
What led you to develop the indicator? Back then, people were using  
oscillators 
to show the strength and weakness of a particular stock or  commodity and each 
oscillator had a different scale. The RSI put all  commodities and stocks on 
the 
same scale from 1 to 100.
TJ: How?
Frankly, I can’t remember exactly how I did it. But, I could figure it out 
again, given enough time.
TJ: In basic terms, what sort of signal(s) does the RSI give?
In a nutshell, it measures the current strength and weakness of a  particular 
market often in advance of the move. I don’t think we have  the space here to 
cover it completely, but on page 68 it is laid out in  detail, including one of 
the most important concepts: “The Failure  Swing”.
TJ: Are the principles in the book still relevant in today’s market?
What would you modify and add if you are to write an updated edition  today? 
The 
answer to the first question is definitely. For the second  question, I can’t 
think of anything I would ad or take away in the book.  I admit that is quite 
unusual!
Part III : On Markets
TJ: How do you view the market?
The markets must win or else their will be no markets. There must be  more 
money 
lost than won. The big winners are the Commercial Hedgers  with huge money to 
back up their positions. These are the Fundamental  Traders. The second group 
of 
traders is the Large Speculators which are  mostly the big commodity funds. 
They 
are technical traders. The last  group is the Small Trader. The Small Traders 
certainly outnumber the  other two by I would guess a thousand to one. Since 
only 5% of Small  Traders (over time) end up making a profit you can see where 
the money  comes from to make a market. Fortunately, so far, I am still in the 
5%!
TJ: How do you approach the market?
I have two accounts. In one account, I follow the Delta Plus System  on the 8 
commodities exactly, no matter what I think personally. In the  second account 
I 
use the Delta Turning points and my own judgment to  trade all of the market, 
but not necessarily at the same time!
I also have another system, called the DDS (Delta Directors System)  that 
trades 
any and all commodities with only one parameter. (A  parameter is a certain 
value or number that changes for every  commodity.) This system has averaged 
over $50,000 a year in actual  trading for the last 10 years. Nine out of the 
ten years were  profitable. The one losing year was a loss of $5,000. The first 
quarter  of the following year made over $20.000.
TJ: What has changed in the markets now from when you first started?
Since the markets must win, most trading systems can work fairly well  for a 
year or two and they break down to loosing as more and more  sophisticated 
market action adapts to defeat the system. So what has  changed is that the 
markets adapt to most every kind of trading system,  and it becomes harder and 
harder to come up with a system that can beat  the markets. But, a few of them 
do beat the markets year after year. The  more commodities your system trades 
well and the fewer parameters it  has, (no more than two at the most) the 
better 
and longer lasting is  your system.
TJ: What has remained the same in the markets now compared to when you first 
started?
Not much except for the three classes of traders.
Part IV : On Trading
TJ: Is trading difficult? Well, it’s certainly not simple.
Successfully trading commodities is the most difficult thing I can think of.
TJ: What are the difficulties?
Finding a good trading system and following it exactly.
TJ: What is the biggest cause of failure and how should people overcome it?
Letting your emotions override your plan or system.
TJ: Are traders born or can they be taught?
Both. Some people are born with an innate discipline. Most have to learn it the 
hard way.
TJ: What would make a good trade?
The trade should be in the major trend direction. It should not have  wild 
gyrations. If possible there should be a nearby support area to  provide a 
reasonable stop. It should be rated high on the COT.  (Commitment of Traders.)
TJ: What would make a lousy trade?
It would be a trade against the major and minor trends with wild gyrations.
TJ: You’ve been trading for some time. I think one of the most  difficult 
things 
traders are faced with is dealing with emotion. How do  you avoid falling into 
the type of trap?
That’s a good question. It takes experience, discipline, quickly  recognizing 
the problem and the determination to overcome it. Otherwise  get out of trading.
TJ: What else should people keep in mind when they are managing risk?
Risk is something one should consider before entering the trade. He  can use a 
chart to determine the support and resistance. If those allow  too much risk, 
either forget the trade or come up with a dollar (amount  of money) risk. Most 
importantly, do not increase the risk if the trade  is going against you.
TJ: Given a chance to start all over again, what would you like to do 
differently?
Well, if I knew then what I know now, I would probably know Bill  Gates and 
Warren Buffet as personal friends! Seriously though, as I look  back on my life 
and think of how exciting and rewarding it has been,  including the hard times 
and the good times, I wouldn’t change a thing!
TJ: Let’s talk about trading education. How long do you think it would take 
someone to master the art of trading?
Of course that depends to a great extent on the person and his  mastering of 
the 
attributes we have been talking about. Most traders  never master the “art of 
trading,” because to me that implies being able  to trade profitably without a 
system to rely on. So, I don’t think  there is I have a definitive answer to 
that.
Part V : Trading System
TJ: Other than the book, you have also developed a trading  systems? Please 
tell 
us a little about it. Why did you develop it? What  is the basic principle?
Over the years, I have developed numerous trading systems. I ended up  with two 
trading systems that I will probably trade for the rest of my  life. One is the 
Delta Plus System which trades 17 commodities  profitable with low draw downs. 
I 
prefer to trade Delta Plus on what I  call “the big 8” instead of 17. It has 
two 
parameters. It has twelve  years of very profitable results and two years of 
actual trading  results.
The other system is the DDS system. It is based on a certain  configuration 
that 
very often causes a major break out either up or  down. We take the trade in 
the 
direction of the breakout and follow it  with a unique stop. Although this 
system is definitive, it has never  been programmed. It would be a bear for 
anyone to program. Our  experience with the program in 10 years of actual 
trading, as I  mentioned above, was over $50,000 per year. Draw down is 
generally very  low.
TJ: What is your view on trading systems?
Do they work? What makes them work? I think the best thing a  commodity trader 
can rely on is a good trading system. In the February  issue of Futures 
magazine, is an article bout the “Top Ten Trading  Systems through Time”. I 
know 
George Pruitt (who conducted the testing)  personally. He is totally 
trustworthy. I have not revealed my two  systems to anyone to program. My 
personal programmer is good friend who  works exclusively for me.
I will list several of these systems so you can look them up on  Google. They 
are all for sale. Here we go: Aberration, Basic II, Dollar  Trader, R-Breaker, 
Grand Cayman, Trend Channel, and Golden SX.
I am not familiar with any of these systems or how many commodities  they 
trade. 
I don’t want this to sound like a commercial, but add to the  list my Delta 
Plus 
System, which is available from the Delta Society  International.
TJ: When you create these systems or indicators, do you alter them constantly 
to 
adjust to changes in market behavior?
Absolutely Not. That is a recipe for disaster. I call it fooling oneself.
TJ: What is the Volatility System and how did it came about?
I think the Volatility System is the best, but most overlooked  overlooked 
system in the New Concepts Book. In 1993, Futures Magazine  did a study on 
trading systems, and declared then that the Volatility  System was the best 
system up to that time. The system is also on George  Pruitt’s list mentioned 
above. The basis for the system is my discovery  of True range. The system has 
two parameters that should be adjusted  for each commodity. One is the number 
of 
days in the Average True Range.  The other is the distance from the close of 
the 
high day to the SAR  (Stop and reverse.)
Part VI: Recommendations TJ: What books would you recommend to our readers? 
To tell you the truth, there are now so many books out on technical  trading, I 
have not been able to keep up with any of them. However, I  have a lot of 
respect for any books written by Tom DeMark. Look him up  on Google.
TJ: Do you have any final comments you’d like to share?
I really enjoyed writing this. Your questions were very well put and  covered 
about everything that one would want to know about trading. I  hope that my 
answers have been beneficial to your readers.
I am over 70 years old and my abilities to do what I have done all my  life are 
not as sharp as they used to be. Over the years, I have  written three books on 
technical trading and trading systems and one  book with the modest title of 
“The Wisdom Of The Ages In Acquiring Wealth”.
If I had only known in my youth what is in this book, I would be much  
wealthier 
than I am now. The book is all conversation between the  teacher, Mr. Richmond, 
and the students. I would urge you to get a copy  from Amazon. Read it yourself 
and then have all your children read it.
In closing, here is something kind of interesting. My name is spelled  Welles 
Wilder. The only other person who I have found that spells  Welles with two e’s 
is Orson Welles. So if you look me up on Google as  Welles Wilder you will get 
so many hits. However, if you look up Wells  Wilder you will get three times as 
many hits. The bottom line is that  three fourths of the people that make 
reference to me don’t even know  how to spell my name!
Well, I really appreciate your insight and thank you for your time.Interviewed 
by Trader’s Journal


      

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