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LEAN is the open source algorithmic trading engine powering QuantConnect. Founded in 2013 LEAN has been built by a global community of 80+ engineers and powers more than a dozen hedge funds today.

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Py
10.5k
GUI: Error messages blocking backtest deletion 1 comment by Jared Broad,
Py
175
Trading Algo example in Python 1 comment by Jared Broad,
32
Algo Code Analizer - Backtesting to Live 2 comments, last comment by Jared Broad,
C#
540
Log/Debug in BaseData Derived Class 2 comments, last comment by TedVZ,
216
[Debug] An object reference error working with indicators Started by Eyal Netanel,
786
Plot Historic Data 2 comments, last comment by Jared Broad,
C#
540
Load list of symbols to process each day 4 comments, last comment by Alexandre Catarino,
Py
691
Is it possible to get historical data in DataNormalizationMode.Raw 23 comments, last comment by Shile Wen,
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494
Need help for stop loss Order Error 4 comments, last comment by Micheal Wu,
C#
4.1k
How do I get to available Morningstar data? 8 comments, last comment by Jared Broad,
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76
Unhandled Exception in backtesting-desktop environment 9 comments, last comment by Tayler Allen,
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Trade frequency 1/n 6 comments, last comment by Geoff L,
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691
Daily trade bar close time 4 comments, last comment by Jack Simonson,
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Has someone deployed a quantconnect strategy on azure? 1 comment by Jared Broad,
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Using in house 1 comment by Jared Broad,
C#
8.1k
What is Web-Hook notification and how does it work? 1 comment by Jared Broad,
Delete downloaded data from My Data? 4 comments, last comment by ,
Py
1k
Extended market hours data error 2 comments, last comment by Jared Broad,
C#
1.8k
Yet another framework 1 comment by David Morrow,
C#
1.8k
Help Simple Indicator not plotting values 3 comments, last comment by Jared Broad,
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