After doing the first preliminary backtests and realizing that the system failed to generate profits from 2000 to 2009, I decided to take a good look at my programming and check the logic to see if I had any substantial errors that could be affecting the expert's trading. After examining the expert for about an hour I realized that I had a problem with the closing logic which was partially closing positions. The ea was closing with lot sizes equal to the atr calculated values, not the values the orders were orginally opened with, so order management was a little bit of a mess.
After correcting this and other less important issues I finally came up with an expert advisor that truly trades the turtle system 2 accurately. As I expected, results are now profitable for trading since 2000 to 2009. The expert is also profitable amongst several currency pairs, including the four majors.
Backtesting reveals that this system behaves exactly as I had supposed it did. We have periods of moderate but extensive loses and then we have very large, trend catching trades that consitute most of our profits. In fact, most of this profitable trades are many times larger than the average losing trade . Trying with different exit and breakout day parameters reveals that the turtles nailed it just right. This expert will not make anyone rich overnight, with the EUR/USD (first graph), you could expect to triple your capital once every 10 years while it would take you this much time to double your capital on the GBP/USD (second graph). If you want a system that has worked for the past 40 years and that can give you a long term, stable profit, then this is a system for you.
As you can see on the backtesting images, this expert advisor is a slow, steady, sure money maker, based on the turtle system 2. This expert also backtests with a high consistency because it trades only on very large periods of time (sometimes trades remain opened for several months). You can get it by simply subscribing to my newsletter (corrected ea has already been uploaded to the ftp for subscribers), buying me a cup of coffee or buying my automated trading ebook.
If you would like to learn more about other free and commercial expert advisors please consider buying my ebook on automated trading or subscribing to my weekly newsletter to receive updates and check the live and demo accounts I am running with several expert advisors. I hope you enjoyed the article !