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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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9
EURUSD, Second The issue starts from Jul 25th, 2021 05:00 PM; and continues until Jul 25th, 2021 06:00 PM Started by Dimitrios,
Py
5.1k
Idea Streams #14 - Predicting Homebuilder Performance from Timber Stock Prices 3 comments, last comment by Stephane Forlini,
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101
Lean CLI Python Debug Does not stop at the break point 10 comments, last comment by Avi Dix,
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177
BTCUSD, Daily The issue starts from Mar 9th, 2018; and continues until Mar 9th, 2018 Started by Michele Baldo,
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61
Best way to filter Universe by returns over the past 12 months? + a couple more questions 1 comment by Varad Kabade,
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31.1k
OCGN,EXPR,SOLO,RIDE,GOTU,SPCE,HYLN,CLOV.ATOS,NKLA,XXII,VTNRV, Daily The issue starts from Mar 1st, 2021; and continues until Mar 21st, 2021 Started by Varad Kabade,
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2k
Error message Local live trading. 2 comments, last comment by Vronghel,
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4.2k
National Intern Day :) Started by Sheikh Pancham,
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672
Apparently unusual behavior of StopMarketOrder 4 comments, last comment by Thomas Beauchamp-Arnold,
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1.8k
LEAN Optimize Results 2 comments, last comment by Franky,
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Universe selection and running algorithm 3 comments, last comment by Varad Kabade,
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3.5k
Problem with Backtest (maybe a Bug) 20 comments, last comment by Strongs,
C#
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Lean CLI local trading Error 2 comments, last comment by Varad Kabade,
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354
How Do I Access MorningStar Data? 1 comment by Vladimir,
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162
Assignment Event 1 comment by Louis Szeto,
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901
How to store a value? 2 comments, last comment by Devsim,
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1.2k
Storing data in ObjectStore using the backtest ID as the key 1 comment by Varad Kabade,
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354
Both self.Debug and Debugger not working 2 comments, last comment by Varad Kabade,
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About demo algorithm 12044 3 comments, last comment by Vladimir,
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354
QCAlgorithm' object has no attribute 'histories' 5 comments, last comment by Varad Kabade,
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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.

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