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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
525
Custom indicator breaks halfway during backtest 1 comment by Derek Melchin,
Py
1.6k
Consolidated data creates different fill price with market order 6 comments, last comment by Jared Broad,
Py
4.9k
IVW, Minute The issue starts from Oct 19th, 2020; and continues until now 2 comments, last comment by JayJayD,
Py
543
How do we set stop loss and take profits ? 2 comments, last comment by Aaron Janeiro Stone,
Py
137
Difference between OnDataConsolidated and OnData for a custom futures Indicator 3 comments, last comment by Derek Melchin,
Py
543
How do we plot the currents solution candle sticks ? 1 comment by Derek Melchin,
Py
823
Rearrange Quandl DataFrame 4 comments, last comment by Elyes Mahjoubi,
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2k
The DataQueueHandler does not support Futures 6 comments, last comment by Sergej Gorev,
Py
2.6k
Transferring prizes after winning Alpha Competitions 2 comments, last comment by Ryan Bell,
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3.1k
Self.SetPortfolioConstruction(InsightWeightingPortfolioConstructionModel()) fails to execute insrtuctions 1 comment by Hector Barrio,
Py
2.4k
Replace a ticker list with a universe 8 comments, last comment by Jared Broad,
Py
1.6k
Buying an equity with subscribing to data? 1 comment by Derek Melchin,
Py
90
Daily Log Size Limit Reached 1 comment by Jared Broad,
Py
487
Fill simulator at a different resolution than bar? 1 comment by Derek Melchin,
Py
12
Python vs C# 1 comment by Jared Broad,
C#
28
How can I change payment information? 1 comment by Jared Broad,
Py
2.4k
MOO/MOC and Opening/Closing Auction in backtest 1 comment by Shile Wen,
Py
1.2k
Live trading problem - GDAX 3 comments, last comment by Jared Broad,
Py
710
Pre-market data 1 comment by Shile Wen,
Py
63.4k
Strategy Library Addition: SVM Wavelet Forecasting 2 comments, last comment by Shile Wen,
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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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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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