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Demo vs Live Acc Backtest Results Different

juanj · 2018-07-18T09:56:35+00:00

Good Day I have just come across something extremely worrisome that could potentially invalidate much of what I have done on PRT over the last 2 years. And worse pull the entire legitimacy of ProRealTime’s backtest engine into question. I personally test all my strategies on my Live account albeit I do leave them alone approximately 1 to 2 months after development to see if the OOS backtest data confirms the in-sample backtest data. Yet today for the first time in probably a year I ran the exact same strategies I have been testing and running in my Live account on the Demo account. And to my horror, the backtest results differ wildly between the Live account and Demo account! See example attached. I have already confirmed TimeZone settings to be the same on both Demo and Live accounts!

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Demo vs Live Acc Backtest Results Different

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07/19/2018 at 9:06 PM #76350 quote

Vonasi
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juanj wrote:

@vonasi, you say “I have found strange things in the hour, dayofweek etc data before” have you reported this to PRT?

No because I worked out that opendayofweek, openhour etc was always accurate and to be honest with you I do not have a single strategy that uses time or day as a a condition. In my mind either price is a good price to buy or it isn’t and the time of day or day of week has no reason to be in the decision. Maybe if I liked breakout strategies at the open this would be different but for me they never work.
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Demo vs Live Acc Backtest Results Different

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This topic contains 15 replies,
has 5 voices, and was last updated by Vonasi
8 years, 3 months ago.

Topic Details

Forum:	Platform Support: Charts, Data & Broker Setup
Language:	English
Started:	07/18/2018
Status:	Active
Attachments:	6 files

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Demo vs Live Acc Backtest Results Different

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Demo vs Live Acc Backtest Results Different Platform Support: Charts, Data & Broker Setup

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Demo vs Live Acc Backtest Results Different

Platform Support: Charts, Data & Broker Setup