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Sergey V.
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November 17, 2016
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Hi Caesar,
Thanks for interesting post. Sure credibility of backtest on simulated data depends on how precise your synthetic data is and how quickly your signal changes.
For 1-yr momentum there is one story, and you may use less precise data, and for 5-days reversion – completely different story, and you need much better data to test this.
BTW, six figs. investment have OHLC data on volatility ETPs: https://sixfigureinvesting.com/2014/09/simulating-open-high-low-vxx-vixy-tvix-uvxy-xiv-svxy/, maybe you could use this to trade not on closes of the same day (which may be not that realistic, given wild nature of the instruments involved)
Cesar Alvarez
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November 17, 2016
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I am aware of the OHL simulated data but the amount of error he decribes is too much for me. The main thing I want to make sure people are clear is that the data may or may not work for you depending on the strategy. Just be careful using this data.
Michael
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November 18, 2016
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hi cesar, would you consider adding a search functionality to your blog so we can easily look up past blogs or topics?
Cesar Alvarez
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November 18, 2016
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I can see when I am logged in as my WordPress admin but when I look at the site logged out I can’t see the search feature. I will have to look around and figure out how to get it back. Thanks for pointing this out.
michael
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May 24, 2017
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hi cesar, did you build your own synthetic data to run your tests? i recently ran some tests using the data from six figures investing. although the results over the overlap period were qualitatively similar, good years were good and worse years were worse etc, quantitatively they were very different with variations of 40% or more at times. what do you think?
Cesar Alvarez
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May 24, 2017
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No, I used the data from Six Figure Investing. I found that it really depends on the strategy whether one can use this data or not.
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