Good system...

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LeviF
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Good system...

Post by LeviF »

I was wondering if someone could post their test results of a "good" system that they created. I would simply like to compare the results to some tests that I have run. I'm not interested in copying the parameters or the system, I just want to look at the results to see if i'm on the right track.

Levi
sluggo
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Post by sluggo »

When you searched, did you find these threads?

viewtopic.php?p=22877&highlight=intermediate#22877

viewtopic.php?p=22996&highlight=%2Acube%2A#22996

What's your opinion, do you consider either of these to be "good" ?
LeviF
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Post by LeviF »

Thanks, i'll check these out. I had seen Ted's before.
painless
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good? I think so

Post by painless »

My recent test on USSDCHF over 20 years
is now removed pending error adjustment.
Oh well thats ok. I'm getting used to egg on my face.
DeanoT
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Post by DeanoT »

As others have already stated, a 'good' system is likely to mean different things to different people.

Some may find System One below to be an example of a 'good' system, while most would find it untradeable.

Most would prefer System Two, however some would even consider a 35% drawdown to be too large to be a good system.

What is a good system to you, depends on you.
Attachments
System One.jpg
System One.jpg (154.42 KiB) Viewed 7159 times
System Two.jpg
System Two.jpg (150.41 KiB) Viewed 7159 times
sluggo
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Post by sluggo »

One and Two sure do look like they share the same set of entry and exit signals, and only differ in the position sizing. Scan down the column of #trades in each of the years, One and Two are virtually identical. Compare the total #trades, total #winners, % of winning months, virtually identical. Leading me to believe One and Two get the same set of entry and exit signals, and just make different decisions about what size positions to put on.

If these simulations are trading futures or forex, the (Round Turns Per Year Per Million Dollars) are certainly large! Your broker must love these systems. It's a shame the bottom part of the Trading Performance table was omitted from the images. It would have been amusing to see the total dollars lost to commissions and to slippage, from such furiously high turnover. Your broker (who receives the commissions) and your market-maker (who receives the slippage) would probably make a very good living from these systems.
DeanoT
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Post by DeanoT »

Sluggo

The two systems are indeed the same, with different position sizes as you correctly assessed.

Regarding the round turns per million, the figure is misleading, as the system is backtested over futures and stocks, which distorts the figures.

It is a very long term trend following system, evidenced by the average win percent to average loss percent ratio.

Regarding transaction costs, I have re-attached the tables highlighting slippage and transaction costs, along with the input assumptions.

As can be seen, transaction costs are, in fact, relatively small in proportion to total profits for both systems.
Attachments
Transaction Costs.jpg
Transaction Costs.jpg (19.34 KiB) Viewed 7055 times
System One.jpg
System One.jpg (169.67 KiB) Viewed 7057 times
System Two.jpg
System Two.jpg (159.89 KiB) Viewed 7057 times
DeanoT
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Post by DeanoT »

Also attached below is a sensitivity analysis on the slippage factor. Even at 100% slippage, the MAR holds on quite well.
Attachments
Slippage One.jpg
Slippage One.jpg (21.41 KiB) Viewed 7047 times
Slippage Two.jpg
Slippage Two.jpg (20.29 KiB) Viewed 7047 times
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