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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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Noob question regarding AddEquity 1 comment by Nanofon,
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Send call to interactive brokers api within custom data class 1 comment by Derek Melchin,
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C# with embedded Python, or Python with embedded C# ? 4 comments, last comment by Karel Goderis,
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WAG, Minute The issue starts from Apr 30th, 2011; and continues until Oct 5th, 2011 Started by Ari Cooperman,
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How to properly detect missing option data 1 comment by Shile Wen,
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Create Rating based on Coarse and Fine Selection 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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