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Tharp's Thoughts Weekly Newsletter (View On-Line)

May 13, 2009 - Issue #423

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Trading Education

The Definition of Position Sizing

Article

How You Process Information Influences Your Trading Results by Van K. Tharp Ph.D.

Workshops

Van Tharp will be in Germany in August

Trading Tip

Some Much Needed Perspective on the Current Rally by D.R. Barton, Jr.

Ask Van

It's Your Objectives that Matter...Not What Dr. Tharp Thinks

Trading Education

Because Size Really Does Matter in the Markets, 

Van Tharp's Definitive Guide to Position Sizing

Position sizing is that portion of your trading system that tells you “how many” or “how much.”  How many units of your investment should you put on at a given time? How much risk should you be willing to take? Aside from your personal psychological issues, this is the most critical concept you need to tackle as a trader or investor.

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Feature

How You Process Information Influences Your Trading Results

By Van K. Tharp

As a trader part of your challenge is that you must make decisions based on a large amount of information. Thousands of volumes have been written on how to analyze the vast amount of investment information available. Few investment authorities will admit that most of this information is of low quality and has little predictive value. Since investment information is of such low quality, mental strategies (how you make decisions) become especially important in determining the profits or losses that you will experience.

To give you just a little insight as to what I mean about how we deal with this information in our decision making process, let me share this information from the Second Edition of the Peak Performance Home Study Course (which we will be releasing soon).

Information as a Concept 

As a child when we first learn a language, we ask mom, “What is that?”  Mom might say, “It’s an apple.”  And then the rest of your life you relate to each apple, not through a direct sensory experience about the apple, but by the word "apple."  If mom said, “That’s called an apple,” you might be a little more inclined to have a sensory experience of an apple.  But typically Mom says, “That is an apple.”  And you accept her word for it.  And even when you eat an apple you don’t really experience the apple.  Instead, you just swallow something and say to yourself, “That was an apple.”  And that’s quite different from being in the present moment with an apple.

The market is even more indirect and full of concepts that you don’t really know or understand.  You never really have a direct experience with a stock.  Instead, you see quotes on a computer, bar charts, and a place on your computer screen where you can fill out some information and open a position.  You can never directly have an experience of that stock.

So all day long we are basically dealing with concepts flowing through our heads, not having a direct experience with anything.  And the market is probably as indirect as anything.

Your head is probably filled with chatter.  And most of it means very little.  For example, let me stop for a minute and give you a running commentary of what’s flowing through my head:

“Oh, now you’ve done it, what are you going to say?  And I probably had something important right there, but now thinking about it, I don’t know what it is.  He’s in my head.  Boy, I’m feeling sleepy.  OK, a minute is probably up.”

Notice that what I said is mostly junk, but it’s actually what I said to myself when I recorded my thoughts for about a minute.  Psychologists estimate that about 80 - 95% of the information we pay attention to in our heads is total junk.  It doesn’t mean anything and it is repetitive.  But for most people it is still the reality to which we give our attention. 

So let’s see.  What do we know now?  Our thoughts are mostly junk concepts that we mistake for reality.  And our only exposure to the markets is through vague concepts that just add more junk into what’s going on in your head.  And it’s what’s going on in your head that you really trade (i.e., your beliefs)—not the markets!

This means that traders do not have direct sensory feedback about their trading performance.  Typically, investment information is delayed and transformed through many levels of coding.  For example, when a trader opens a position in the market, he does not get immediate sensory feedback about the investment.  Most investments are traded symbolically.  Typically, you might get a computer confirmation from your broker.  You enter the order in your computer, it’s executed, and you get a summary statement of what happened. 

Tom Basso (of New Market Wizard's fame) did a study in which he estimated that it took 2.5 minutes total elapsed time for him from the time he saw a signal on his quote machine in St. Louis to the time an order was actually executed in Chicago or New York.  A lot can happen in 2.5 minutes.  That was about 15 years ago, so you may be able to do it faster with today’s computers and the Internet.  But the amount of information you have to deal with has probably doubled in the last 15 years as well.

When making an investment decision, the trader may get a verbal suggestion from someone, read a newspaper article or a newsletter, call into a hotline service, or study arbitrary visual representations of the investment’s history (called a daily bar chart, a financial report, etc.).  Some investors receive price quotations at their computer via phone lines and then transform the information via computer software into arbitrary transformations known as bar charts, moving averages, oscillators, Market Profile®, etc.  Thus, most of these sources of information are coded and recoded many times and are, at best, far removed from the original source.

Even people who work on the floor of an exchange get second-hand information, since the only information available is symbolic (e.g., verbal, written, or hand signals).  Investments seldom change hands on the floor of the exchange.  They are simply coded in log books or computers as having changed ownership.  Direct sensory feedback, the highest quality sensory information, seldom exists for traders.

I only know of one example of traders receiving direct sensory feedback.  Some floor traders on various exchanges use noise level as a system for trading. That is, they use the amount of noise on the floor as a signal for action.  When the noise level on the floor is high, they become suspicious of what everyone else on the floor is doing and if the noise level later becomes quiet, they go against the crowd.  But floor trading is quickly disappearing in favor of electronic market making.

There are many other aspects that go into how we deal with trading data. There is an aspect of responsibility that is important. I also teach internal representation and how that affects the way you view market information. It is also important to understand how you produce your internal models and the structure of internal information. However, this is extensive information, which is covered in an entire chapter of the Peak Performance Home Study Course.

How we process information can have a huge influence on our trading results because we use that information to make trading decisions. When you are studying the market and making your plans for trading ask yourself, “What does this data really represent? What does it really mean to me and how does it help me meet my trading objectives?”  Just a little shift in your thinking can sometimes go a long way toward understanding yourself and your objectives better. And in my opinion any advancement in the understanding of one’s self is an advancement in your trading.

About Van Tharp: Trading coach, and author, Dr. Van K. Tharp is widely recognized for his best-selling books and his outstanding Peak Performance Home Study program - a highly regarded classic that is suitable for all levels of traders and investors. You can learn more about Van Tharp at www.iitm.com. 

 

Workshops

Dr. Tharp Will be in Berlin, Germany in August!

While on this trip he will be available for one-on-one consulting. 

If you have any interest in consulting, please contact us as soon as possible so we can work it into his travel agenda. 

Learn More: http://www.iitm.com/consulting/one-on-one-consulting.htm

 

Trading Tip

Some Much Needed Perspective on the Current Rally

by
D.R. Barton, Jr.

“Most of the time common stocks are subject to irrational and excessive price fluctuations in both directions as the consequence of the ingrained tendency of most people to speculate or gamble... to give way to hope, fear and greed.”  Benjamin Graham

We’re going to take a break from our series on no-cost and low cost stock screeners to look at some interesting perspectives on the recent market price action.

It’s easy to get sucked into the hype that the media produces for us.  And right now that hype is around the “record” move up that the stock market has made over the last couple of months. Let’s look at some math and then a chart that help to put the move into perspective.

First, the math.  After an asset has dropped almost 60% in value, it’s easy to have a big percentage move up from that low price.  For example, if a $10 stock drops to $4, and moves back up to $5.60, we could talk about the amazing 40% move up that it has had from its low, especially if we wanted to position things with a positive spin.  Or sell newspapers or TV ad time.  Or push forward an agenda.

Sure, such a move is impressive (and lucrative for those who bought near the bottom), but it really obscures what’s happening in the bigger picture.  Let’s look a chart of the S&P 500 with some Fibonacci retracement lines drawn from the October 2007 highs to the March 2009 lows.

At the most basic level of analysis, we can see that this “historic” upward price move has not even come close to a 38.2% retracement (the first key level of price retracements in the Fibonacci world).

My favorite market analyst and good pal Christopher Castroviejo reminds me that even during the market crash of the late 1929 and subsequent Great Depression, there were no fewer than five rallies of 40% or greater.  So this up move, while it breathes some hope into the market, is by no means definitive yet.

Would I love it if the economy righted itself and things just rocketed up from here?  Sure!  Economic downturns are tough on a broad range of folks, so pulling out of that would be really nice.  But I’m also a realist; the economy has shown some signs of life, but I believe they are much smaller than one might expect given the truly massive and unprecedented amount of money that has been shoveled into circulation. 

Next week we’ll look at this retracement move using a couple of other very interesting tools (some ratios, for example).

Until then…

Great Trading!

D. R.

About D.R. Barton, Jr.:  A passion for the systematic approach to the markets and lifelong love of teaching and learning have propelled D.R. Barton, Jr. to the top of the investment and trading arena.  He is a regularly featured guest on both Report on Business TV, and WTOP News Radio in Washington, D.C., and has been a guest on Bloomberg Radio. His articles have appeared on SmartMoney.com and Financial Advisor magazine. You may contact D.R. at  "drbarton" at "iitm.com".  

Q&A

It's Your Objectives that Matter...Not What Dr. Tharp Thinks

Q: How do you feel about a system that trades futures but gets its signals (entry/exit/stops) from the underlying price data? I live in Israel and our local TA-25 equity index has no available data on futures (well, synthetic futures that is, we only have 30 day options strings). So can I derive signals from the index itself while trading the synthetic futures?

A: The question is not how do I feel about it, but how do you feel about it.
You can only trade your beliefs about the markets, so it's important for you to understand your beliefs. And when you notice a belief, you need to understand the following: 

1. Where did it come from?
2. What does it get me into? 
3. What does it get me out of? 
4. Is it useful? If not, then change the belief.

So it sounds like your question is "Do I believe there is a correlation between current price data and future price data?" My belief is not important; your belief is. What do you believe and why?

Q: When Turtles enter the market, they position stops at 2% of the portfolio equity in terms of volatility. However, when they pyramid, even though they move the stop in the direction of the trade, they increase risk up to 5% a trade (that started their way). Isn't that too much? I mean, the turtles had portfolio cap of 12 units long AND short in non correlated markets, that could mean 60% of portfolio risk ("heat"). Am I right? What would you do?

A: Your second question is similar. You are asking me if I think 5% total risk in a position is too much. What do you think? However, I will partially answer this question. The purpose of position sizing is to achieve your objectives. Thus, the question reframed becomes "Is 5% total risk right for your objectives?" which might be different from my objectives or the objectives of the Turtles. So what are your objectives and, given the SQN (TM) of your system, how appropriate is a 5% risk in achieving them?

To understand this better (which is way beyond the scope here), I'd suggest that you read The Definitive Guide to Position Sizing.

Feedback

Ask Van...

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Copyright 2009 the International Institute of Trading Mastery, Inc.

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Tharp Concepts Explained...

 

- Psychology of Trading

- System Development

- Risk and R-Multiples

- Position Sizing

- Expectancy

- Business Planning

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Free Downloads

Handbook for Traders and Investors

 

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Free Trading Simulation Game

A computerized version of Van's famous "marble game."

It is designed to teach you the important principles of proper position sizing.

Download the 1st three levels of the game for free. Register now.

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