RSI based trading strategies

Quote from Muskoka Joe:

1. A 10 Day RSI with a two months of historical data will be exactly the same as a 10 day RSI with 20 years of historical data.

2. The ability to translate price to a 0-100 scale and have momentum comparisons not identical to price movements lies the true value of RSI. When are they different? How is that important? Good Luck.

3. OP is on a good path. Stay the course. You need to keep digging deeper. When you find it, you won't be publishing it here.
+1
 
Quote from dwpeters:

By normalizing market prices, do you mean something like detrending the price? For example creating a series that is difference of the price and a moving average? I have heard of the trend adjusted stochastic which I think incorporates this into the indicator.

I never covered these topics when I took statistics, or perhaps I forgot, but in looking up the definition of a gaussian process, it appears that it essentially describes something with a normal distribution. Since stock market returns do not have a normal distribution I don't know how you would convert them into something that does. I don't think simply detrending would do this.

Perhaps that is one of your trade secrets, in which case I understand if you don't want to elaborate for those of us that are statistically challenged.

You are right, detrending is a good start but is not sufficient.

If you're interested the next step would be to look at how volatility relates to price.

Ninna
 
Quote from nLepwa:

RSI surely works better in range markets.

What I meant however is that RSI performs better on a gaussian process than on market prices. The challenge isn't on optimizing RSI for specific market conditions but on normalizing market prices.

Ninna

Do you mean that if you normalize prices properly, oversold conditions may turn out not to be so and the same for oversold?

However by normalizing prices you do not change the number of up or down days. Neither you change their relative magnitude. I may be wrong, but normalization will result in the same RSI values if the same normalization procedure is applied to both down and up days.
 
Quote from intradaybill:

Do you mean that if you normalize prices properly, oversold conditions may turn out not to be so and the same for oversold?

However by normalizing prices you do not change the number of up or down days. Neither you change their relative magnitude. I may be wrong, but normalization will result in the same RSI values if the same normalization procedure is applied to both down and up days.

I did not mention normalization of prices. I use Connie Brown and her insights regarding the RSI. I have discovered and coded the Composite Index, which is a companion to RSI. I will not give it away because she has the formula in her book, and i will not dishonor her in that fashion. If you ask me to supply a chart, I will, but I will not ever give away the formula to the Composite, because it is there to be had, if you are not lazy.
 
Quote from rdg:

frost, I'm still curious about this. I attached a pic showing what I'm talking about. I'm curious about this because it's a bias I've come across when using traditional backtesting software to do the type of analysis you are doing. I haven't tested using NinjaTrader, though.

The first chart shows 5 trades with 20% winners. The second shows 2 trades with 50% winners. Most software will only kick out case 2, and you might put RSI(3) < 30 into a set of building blocks thinking that the condition generates 50% wins when it actually has a win rate of 20%.

In any case, I'm enjoying following this work that you're doing.

I fully understand your concern. However, that is an artifact of a small sample space. With a large sample space that becomes less relevant as the strategy's results approach its true probability.

For example, when the number of trades taken is sufficiently large you can randomly remove taken trades and the winning %,profit factor, etc remain relatively stable. The same observation can also be made by taking out trades in a more deterministic fashion such as remove every 3rd trade etc. Still the important metrics remain stable. Failure to remain stable would point to a systemic issue in your results and would be cause for concern.
 
Quote from fframe38:

Actually one of the better ways I have found to trade stochastics (and most oscillators) is to buy on the first crossing into overbought ( > 80 stochastics, > 65 RSI ) and expect a trend move to carry 1-3 bars into the future. This works well for momentum moves and is usually only a breakeven trade or small loss on failures.

The standard (ie idiot) way to trade these is to sell/short immediately upon the first reaching of an overbought reading and wait for a downtrend to set in. Any strong trend will decimate you using that approach.

This is what I aim to prove/disprove in this exercise. The results I am publishing is in stark contrast to your stated observations. Buying when first crossing into overbought and holding for the next several bars was a losing proposition in all tests. On the other hand buying when crossing BELOW a threshold such as into oversold worked out very well and showed a statistical edge when compared to random entries.

How do you reconcile the differences between my results and your observations?
 
Quote from RCG Trader:

I did not mention normalization of prices. I use Connie Brown and her insights regarding the RSI. I have discovered and coded the Composite Index, which is a companion to RSI. I will not give it away because she has the formula in her book, and i will not dishonor her in that fashion. If you ask me to supply a chart, I will, but I will not ever give away the formula to the Composite, because it is there to be had, if you are not lazy.

"The reason, The Composite Index looks a lot like my work is because it is my work. All Ms. Brown did was change the name of my "CFG" Oscillator. My work was copyrighted and reistered with the US Copyright Office back in 1990. And as for my Cardwell Positive and Negative Reversals Patterns in RSI I have been working with them since 1978 and have taught them in my seminars and courses since 1989. I still make my courses available (RSI Basic and The RSI EDGE) and you will find information on my website -- cardwellrsiedge. The RSI EDGE Course was first offered in March 2002 and has my CFG ( what Ms. Brown calls her Composite Index) and is included as part of the course. I also have other indicators which I have developed over the years. Any of my other work and research that I have developed since The EDGE I forward to my course students as part of their course. Each student has my cell number as well as my direct email address. I stay in touch with my students and many send me charts of current markets with examples of what they first learned in my courses. I guess that's why over 70% of my students have been referred by previous students and we have students and clients in now 28 countries around the world. I am here and available to speak to anyone who would want to get in touch. Check out the site and send me an email.

i look forward to stopping in here every so often and hope to share some insights and my thoughts.
For now be careful in the stock market. I think we will be testing the lows again. This rally since March is just a correction in still a long term downtrend.

Thank you and all the best always to everyone.
Andrew Cardwell"

http://www.trade2win.com/boards/tec...tance-browns-composite-index.html#post1205014

BTW he was wrong about #2 when he posted in Aug 2010
 
Quote from shortie:

"The reason, The Composite Index looks a lot like my work is because it is my work. All Ms. Brown did was change the name of my "CFG" Oscillator. My work was copyrighted and reistered with the US Copyright Office back in 1990. And as for my Cardwell Positive and Negative Reversals Patterns in RSI I have been working with them since 1978 and have taught them in my seminars and courses since 1989. I still make my courses available (RSI Basic and The RSI EDGE) and you will find information on my website -- cardwellrsiedge. The RSI EDGE Course was first offered in March 2002 and has my CFG ( what Ms. Brown calls her Composite Index) and is included as part of the course. I also have other indicators which I have developed over the years. Any of my other work and research that I have developed since The EDGE I forward to my course students as part of their course. Each student has my cell number as well as my direct email address. I stay in touch with my students and many send me charts of current markets with examples of what they first learned in my courses. I guess that's why over 70% of my students have been referred by previous students and we have students and clients in now 28 countries around the world. I am here and available to speak to anyone who would want to get in touch. Check out the site and send me an email.

i look forward to stopping in here every so often and hope to share some insights and my thoughts.
For now be careful in the stock market. I think we will be testing the lows again. This rally since March is just a correction in still a long term downtrend.

Thank you and all the best always to everyone.
Andrew Cardwell"

http://www.trade2win.com/boards/tec...tance-browns-composite-index.html#post1205014

BTW he was wrong about #2 when he posted in Aug 2010

Wow! Learn something new every day! Well, at least the OP is aware that Andrew Cardwell is the authority on the RSI. She does mention that. On the other hand however, how is allowed to continue to publish her books with stolen info, why does he not sue?
 
Quote from RCG Trader:

I did not mention normalization of prices. I use Connie Brown and her insights regarding the RSI. I have discovered and coded the Composite Index, which is a companion to RSI. I will not give it away because she has the formula in her book, and i will not dishonor her in that fashion. If you ask me to supply a chart, I will, but I will not ever give away the formula to the Composite, because it is there to be had, if you are not lazy.

I was not replying to you:)

Then, if you are using any technique available in any book, you are certainly not having an edge.

I know people that constantly fade the signals of that formula and make money at the expense of fools who read some technical analysis.

They have even devise projections to know when the fools will be placing tardes based on that and similar indicators.
 
Quote from intradaybill:

Do you mean that if you normalize prices properly, oversold conditions may turn out not to be so and the same for oversold?

However by normalizing prices you do not change the number of up or down days. Neither you change their relative magnitude. I may be wrong, but normalization will result in the same RSI values if the same normalization procedure is applied to both down and up days.

Actually you change the relative magnitude because your normailzation factor isn't constant.
That way you can remove the fat tails.

Imagine you're at a coca-cola factory and you see all bottles coming out. You know that the content of each bottle is normally distributed with a mean 33 cl and std 1cl. In other words for 67% of the bottles the content is 32-34 cl and for 95% it is 31-35cl.
Now imagine that someone lets you bet on whether the next bottle you see will have less or more content than the previous one with a r:r 1:1. If the previous bottle had 36cl or 29cl it would be an easy bet right?

In trading I'm trying to set up the same kind of betting proposition.

Ninna
 
Back
Top