The Motley Fool Discussion Boards
Investing/Strategies / Mechanical Investing
|Subject: Re: Blending at a Whole New Level||Date: 7/22/2008 8:59 PM|
|Author: Zeelotes||Number: 211407 of 256666|
Wow! You guys all focus on the thing that is least important, at least in my view. It is not so much what signal you use that is important, but the fact that it is possible to use it, and raise the blending concept to a whole new level. At least that was my take away message. I certainly wasn't intending to set up a class on timing!
How are you calculating this? I don't come remotely close to 25%/-8% using Pinnacle AM, ND and NY High-Lows data and ^IXIC from Yahoo. If you don't want to share a trade secret how about something slightly different that I can attempt to independently confirm? I should be able to do this (and optimize) using my software no problem.
As some have said, I only used one exchange's values, not three or a combination of any. That is the first and most important point. The second point is that now Jim has given many ways to accomplish this which really drives home my whole point. The signal used is not what is important here.
Are you using the NASDAQ count of new highs/lows for bullish/bearish? If so, how does it (your Blending Method) work using the S&P?
Yes. Do you mean how does the timing method work on the S&P? I'm not clear what you're asking.
Signal at close, assuming trading the index that moment at close, no friction. i.e., not very realistic, but probably OK for signal development if the number of signals per year is small enough.
I'd never do this even for signal development. What I share is always based on a delay of one day and entering/exiting at close prices. Of course, open would probably improve it, but this sort of indicator is not so brittle / sensitive.
This isn't meant to be a trading signal by itself, but it's nice to see the degree of consistency of the signal over time, which is pretty good. I like that you can get quite good results with surprisingly few signals per year, which I have come to appreciate is a very important thing in timing signal development.
Yes, that is right. I'd never use it as a stand-alone trading signal. My purpose was to choose an indicator that was simple to make and update (maybe failed on that one, but to be fair Jim, I don't recall being able to replicate even one of your indicator's either) and captured the general trend where perfection was not needed. Remember, we are 100% invested either way. In fact, it is possible that you remain in the same screen from one signal position to the next.
As to the "few signals per year" comment -- that is most definitely my own findings as well. It is a very rare thing that I would consider a signal with a high turnover rate as being good. The lower the better in almost all cases.
My only question for Zee: how many signals per year did your example signal produce, and what percentage of the time was it bullish?
The signal I developed without a weighted moving average is bullish 72.34% of the time, and has 5.1 signals per year on average. The weighted average signal is bullish just 60% of the time, and has 5.2 signals per year on average.
I broke the results of this indicator into three baskets -- 1978 to 1989, 1990 to 1999 and 2000 to 2008. The results showed out-performance in the first and the last period, but slight under-performance in the middle period. Here is the Long and Cash results of this indicator minus the LTBH of these indexes. Positive means it won.
1/3/1978 12/31/1989 1/1/1990 12/31/1999 1/1/2000 7/15/2008
It does must better on some than on others. When used for the purpose I'm using it to move between various screen blends, the indicator does the job perfectly. If it wasn't so difficult to test every timing method I have available I would test them all, but I think this accomplishes the purpose and does so with elegance.
Hmmm, wonder if that is a record length of time in bearish mode.
It is close to the maximum for my way of doing it. The max # of days is 281 and we are now at 276. The max # of days in bullish mode is 413. The median is 42 days in bullsih mode and 29 in bearish.
I wonder if anyone at all noticed the blend work! Seriously, it seems to me that this work is pretty revolutionary on the blending side and all that gets commented on is a simple little timing indicator. A tad frustrating you might say....
What a contrast to the past. Three or four years ago the timing would be shot down and the focus and interest would be toward screens. Now, it is just the opposite.
|Copyright 1996-2015 trademark and the "Fool" logo is a trademark of The Motley Fool, Inc. Contact Us|