Be careful : Error in % Max Drawdown !

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  • #137221 quote
    zilliq
    Participant
    Master

    Hu Guys,

    I have some doubts since some weeks, but I confirm there is an error on PRT to calculate % Max drawndown (Who is very important as we try not to have more than 20 %)

    The problem is always at the beginning of the backtests

    On my picture as you see, we have a Maxdrawdown of +/- 4000 USD

    At this time, the Max Gain is +/- 11616 USD

    % Max drawdown is 100*4000/11616=34 % (Not good at all = Bankrupt possible at the beginning)

    But when you go on detailed results we have 21.75 % !! (Who could be acceptable)

    So be careful if you use % Max drawdown who is for me better than Max Drawdown

    Have a nice day Guys

    2020-06-26_10h26_41.jpg 2020-06-26_10h26_41.jpg 2020-06-26_10h27_38.jpg 2020-06-26_10h27_38.jpg 2020-06-26_10h28_45.jpg 2020-06-26_10h28_45.jpg
    #137225 quote
    zilliq
    Participant
    Master

    I understand their error :

    They calculate % max drawdown ONLY when floating gain is positive !

    But it’s clearly wrong because they need to included when floating gain is positive AND negative

    Otherwise it would be too easy to have a % Max drawdown <20 % 🙂

    Cheers

    GraHal thanked this post
    #137230 quote
    Vonasi
    Moderator
    Master

    This might be of interest to you:

    Possible to graph drawdowns?

    zilliq thanked this post
    #137231 quote
    zilliq
    Participant
    Master

    Thanks Vonassi, that’s kind of how I calculate (But with close not high/low) and see the error

    Cheers

    #137233 quote
    Vonasi
    Moderator
    Master

    Vonasi not Vonassi. I might sometimes be a bit of an ass but I prefer not being called one!

    Francesco thanked this post
    #137236 quote
    zilliq
    Participant
    Master

    Sorry Vonasi I have not understand what you wanted to say ?

    #137238 quote
    Vonasi
    Moderator
    Master

    I have not understand what you wanted to say

    Don’t call me Vonassi when my name is Vonasi is what I am saying! Do you understand now qilliz?

    #137239 quote
    zilliq
    Participant
    Master

    It seems there is another errors on the road, as you see on this picture

    % Max drawdown of -18,71 % but -16,27 % on detailed results

    Be careful Guys

    Dow Jones thanked this post
    2020-06-26_12h26_12.jpg 2020-06-26_12h26_12.jpg
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Be careful : Error in % Max Drawdown !


ProOrder: Automated Strategies & Backtesting

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zilliq @zilliq Participant
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This topic contains 7 replies,
has 2 voices, and was last updated by zilliq
5 years, 8 months ago.

Topic Details
Forum: ProOrder: Automated Strategies & Backtesting
Language: English
Started: 06/26/2020
Status: Active
Attachments: 4 files
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