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July 19, 2006 � Issue #280 | |
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Workshops How to Develop a Winning Trading System Workshop
Raleigh, NC AND Sydney AUSTRALIAFeature Article Efficiency Trading System Market Update
Trading Education Systems Home Study Also Available
Trading Tip Spreads & Pairs, the Pros and Cons, by D. R. Barton, Jr.
Listening In... VAN THARP HAS A NEW BLOG
How to Develop a Winning Trading System - Workshops New Location! SYDNEY AUSTRALIA
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Tharp�s Thoughts Market Efficiency Portfolio The First Look By I suspect a lot of people have been losing money in the market. We�re starting this model portfolio in what appears to be the second major downleg of our secular bull market. It is ironic because I first started tracking the efficiency model in my Market Mastery newsletter, during the first downleg of the bear market. At that time, we were only purchasing long stocks. And I gave up on the project in the fall of 2002 because there were no positive efficiency stocks above 10 � None. And that was about the bottom of the market. Well, in February this year the market was amazingly strong in terms of efficiency. We have 406 stocks with ratings above 10 and only 11 stocks with rating below minus 10. It was very hard to find a good shorting candidate. Now look at the chart above and you�ll see how things have changed. Today, there are 77 stocks with efficiencies below minus 10 and only 31 with efficiencies above plus 10. As you can see in the chart, the market has clearly changed . There is another way to measure it: What percentage of stocks have an efficiency rating above zero? I�ve charted that in the second figure and the results look similar. In February, 80% of all stocks showed a positive efficiency. As of July 13th, only 37.4% of the market was positive. That's a very large change. THIS IS A MAJOR CHANGE FROM THE LAST MARKET UPDATE AT THE BEGINNING OF THE MONTH. I didn�t think the entire market could change that quickly, but obviously it can. For that reason, I plan to look at market efficiency every two weeks to determine if there are any changes in the overall composition of the portfolio, not every month as I first suggested. Therefore I�ve started the portfolio as of July 16th. Key Determinants As of July 13th the market was 37.4% positive. However, only 31 stocks were above 10, while 77 stocks were below minus 10. As a result, we will start our portfolio with 70% short candidates and 30% long candidates. Another reason for that suggestion was among the 31 possible long candidates, I could only find three that I would consider buying. Those were FAL (Falconbridge), OGE (Oklahoma Gas and Electric), and AETH (Aether Holdings). Among the short candidates, there were many excellent possibilities. As a result, I sorted the list of acceptable shorts by price and decided to short the seven highest priced stocks. These included, by ranking of their closing prices on the 13th, PFCB (PF Chang), LEE (Lee Enterprises), WPI (Watson Pharmaceuticals), JRCC (James River Coal), BSX (Boston Scientific), SCT (Scottish Annuities), and my old favorite for a positive efficiency stock in 2002, DLX (Deluxe Checking). As I described before, we�ll take a $20,000 portfolio and divide it evenly into the 10 stocks. Thus, there will be approximately a $2000 investment in each, including commissions. Each stock will have a 10% initial stop, so our total initial risk will be 10%, with about a $200 risk on each stock. The Portfolio The portfolio was purchased (most of it shorted) at about 1:30 PM EDT on July 16th, 2006. I used that particular time, because that is when I looked at the market on the 16th. All of the stocks have a 10% stop and that will be replaced by a 25% trailing stop when that becomes closer. The current stocks in the portfolio are shown in Table 1 and reflect just over one day of trading. Eight out of ten of them went up yesterday and even after commissions, we only show a loss in four of them. It�s interesting to note that LEE, which I pointed out as a great negative efficiency stock was one of them. WPI is also in the process of acquiring another company and the price of the company doing the take over usually suffers. We may get rid of this stock when the takeover date approaches. We will also be making adjustments to the portfolio as often as every two weeks. These will be made as follows:
* reflects the initial entry commission
My Efficiency Index I've had numerous comments on the index, such as: What is your specific formula for calculating efficiency?
Efficiency might not even be the best way to find such stocks and many of the one�s you find are stocks you�d never want to trade, so discretion must be used. Many of my prior favorite shorts have now moved so low (i.e., below $5) that I wouldn�t consider them for this portfolio. One reason that I�m trading this as a sample portfolio is so you can get some sort of idea how to test such a discretionary system in real time for yourself. How can we calculate our own efficiency index?
How can I use relative strength or some other formula to generate a similar list?
Why don�t you just give us a total list of the stocks that you like so we can pick for ourselves?
Why don�t you give us the best stocks on the day the newsletter is published so we can trade the system.
The last time I did this was in my newsletter Market Mastery in 2001-2002. My purpose was to show that there were good long stocks even in a bear market. The portfolio was actually doing quite well until the depths of the bear market. However, toward the bottom of the bear market the strategy was totally useless because there were no stocks with efficiencies above 10. In fact, if this market keeps going, we may find the same result. However, for the current portfolio, that won�t be a problem because we�ll be 100% short. A problem might arise if the market becomes too low and all the best short candidates sell for $5 or less.
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Trading
Education
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Remember, if you do attend the workshop the Home Study Course is included in the price of your tuition!
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A Review of Market Models: Spreads & Pairs � the Pros and Cons by D. R. Barton, Jr. Last week in this space, we gave an overview of different types of spreads and pairs trading. And we looked at the myth (or at least partial myth) that spread and pairs trading is safer than going only long or short one side of the trade. Today, let's look at the pros and the cons of spreads trading in general. Then next week we�ll look more in depth a the individual strategies for spread and pairs trading and see which ones are really being used, and which ones are just fodder for literature. The Positives of Spread and Pairs Trading * Lower volatility: Last week I mentioned that many folks are drawn to spread and pairs trading by the promise of lower risk. Whether you have lower risk vs. taking only a long or short poison in one instrument is really based on your position size. But what you really do achieve through spread and pairs trading is lower volatility. This is reflected in the margin rates that exchanges set for trading different instruments. Take soybeans for example. The Chicago Board of Trade sets the margin for one contract of soybeans at $750. But a for a month-to-month spread of soybeans (say short the November contract and long the January contract), the margin is only 135 dollars. But remember our discussion from last week. Most traders put on larger spread positions precisely because the volatility is lower. So be sure you manage your risk through normal position sizing practices instead of just assuming that lower risk will occur because of the nature of spreads and pairs. * Well established historical norms: For many types of spread and pairs trading, there is a good history of price relationships that traders can use to guide their strategies. Ratios between gold and silver and the typical price of a soybean crush (soybean prices versus a combination of soybean meal soybean oil) have been well established for years and the outer boundaries of those relationships are well known. Likewise, the price ratio between two stocks in a takeover arbitrage pairs trade is well established, allowing traders to speculate on the likelihood that the deal will fall through or on psychological factors that affect the ratio. The Negatives of Spread and Pairs Trading * Transaction costs: The simple math is that you pay double commission and slippage for most types of spreads and pairs trading. In the height of the day trading feeding frenzy back in 2000, one of the biggest day trading brokers was extolling the benefits of pairs trading and doing everything they could to get their clients to do rapid-fire pairs trading. This, of course, was very self serving; what they were really interested in was doubling their commissions. * When things go wrong, they can go really wrong: One of the strengths of spread and pairs trading is that relationships between well-established spreads and pairs tend to move in very narrow price channels. BUT... when those relationships are temporarily broken, they can move very far, very fast. And since this style of trading is done because it's typically a low volatility trade, when volatility picks up violently, people get caught with large positions. An extreme example of this is in takeover arbitrage pairs trading. When company �A� buys company �B,� the ratio of their value is set by the terms of the takeover. The ratio usually trades at a slight discount to take into account the uncertainty that the deal might fall through. When the ratio gets a little wider people bet that it will return to a tighter ratio. However, when there are rumors that the deal will fall through or if it actually does fall through, anyone who is arbitraging the deal gets taken to the cleaners. It doesn�t happen often, but when it does, it can be devastating. Next week, we�ll look more in depth at some of the individual types of spread and pairs trades. Until then� Great Trading!
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Special Reports By Van Tharp Click below to read page one of each report, or to order. |
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Copyright 2006 the International Institute of Trading Mastery, Inc. |
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Quote: "The
trading system gives the trader the ability to control his or her
emotional states rather than allowing them to control him. A system
is a disciplined method for organizing dynamic, ever-changing market
phenomena." |
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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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