To: Ms. X who wrote (806 ) 2/18/1998 3:13:00 PM From: Ms. X Read Replies (1) | Respond to of 34816
Tom Dorsey Q&A Part 2 Q) RS question - The definition Ben gave is calculated relative to DOW average. In regular charting, RS is determines the strength of a stock using some weighted average. At the minimum, I was hoping RS to determine the strength of a stock relative to its peers in the sector. If DOW is used in RS calculations, the NYSE bull percent is used for the general market direction? Sounds too simple-minded! If it has worked for others, then it is OK with me. A) It is simple and it does work. Keep it simple. ---- Q) RE: 100 minimum stocks in a sector From what I've read of Tom's writings, I have not seen a specifically defined reason for the number 100. Statistics theory, the central limit theorem specifically, says that a population only has to be greater than ~30 members to allow that population to be treated as having a normal distribution and all that that implies. From observing some of the key percentage points that Tom uses, it appears that these coincide with some of the key percentage points of the normal distribution A) Yes you are right, I took many hours of stat in University. A.W. Cohen who developed this method suggests a minimum of 100. You may change it as you wish, we stick with the minimum 100 where possible. In some cases we have to go for less but not generally. We also encompass all the Investors Business Daily groups in our sectors. ------ Q) Tom, Can you discuss the basis and importance of Sector rotation? I hear a lot about it but I must confess I have no idea what that means. Thanks. A) A study done by the University of Chicago suggests the vast majority of risk in a stock is found in the market itself and the sector. We try to buy stocks in sectors that are down. When The Semiconductor stocks were hit recently and the sector went to what we call a low level, we begin to look for stocks in that sector that are fundamentally sound and then we wait for the technicals to come together. ---- Q) Are there any rules concerning buying stocks that are extended a great deal from there base? example - a stock breaks out from a triple top at 30 and moves all the way up to 60. If this stock pulls back to say 56 and then goes back up breaking the double top, would this double top be considered a buy signal or are there any rules about staying away from stocks that have had recent run ups? A) It's hard to say. There are always many right answers in the stock market. We endeavor to highlight a few. In the case you mentioned. You could buy on the buy signal given on the reversal back up because it sets up a good close stop point . This is also a case for a call option. Possibly a slightly in the money call will be the best course of action. You would consider the premium paid for the call as your stop point. Hold it until expiration. This gives you staying power to withstand violent moves if this is what happens. I have some questions for you and Tom. Q) What is your (Jan, alias P&F Madness) relationship with Tom or his company. Do you get some kind of commission from him. A) Jan is our first outsource, Mentor/Intern we have accepted. She is on a fast track program of learning this method. She has come to the home office to learn directly from us here and much of her education has come over the net, phone, and carrier pigeon. Eventually we will attempt to place her in the business with a money management outfit/hedge /research firm etc. She is not paid and has no ax to grind in presenting this firm to anyone else in any way. Her relationship to the company is educational. ---- Q) Could he explain why you use a 1 point box from 20 to 100. Why not use a scaled chart where each box is a fixed % greater than the box below it. Is it just easier for those who plot by hand? A) We used a semi log chart years ago and found it gave us no advantage. This method has worked for over 100 years and we'll just stick to the basics. ---- Q) Do you look differently at a three box reversal on a $25 stock than you do on a $85 stock. A) No, again, we used semi log charts in the past to no advantage. I see where you are coming from but no we don't look on it any differently. The box reversal only increases, if you choose to do it, when the volatility of a stock is too high for the lower box reversal. The volatility of an $85 stock might be much lower than the volatility of a particular $25 stock so the three box reversal could be too low for the $25 stock not the $85.