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Date/Time: Wed, 17 Sep 2025 10:37:39 +0000



Post From: Problem with Backtesting - Big differnce between two instances of SC

[2020-04-22 14:05:10]
rainbow47 - Posts: 68
Hi,

I am backtesting a S&P future strategy in two different insatnces of SC and get very different results (10 day testing with c.30k profit difference). I tested with "AutoTrade SSystem Replay Backtest" and "Replay Chart". The backtest runs over 10 days.

I subscribed to the Denali Realtime feed and using a IB account. SC Instance 1 is for live trading and SC Instance 2 is for backtesting only. Therefore I am using different data connection settings (pictures attached).

Any idea what could cause the dfifference?
imageInstance 1 - DataSettings.JPG / V - Attached On 2020-04-22 14:02:18 UTC - Size: 100.79 KB - 247 views
imageInstance 2 - DataSettings.JPG / V - Attached On 2020-04-22 14:02:58 UTC - Size: 81.15 KB - 248 views