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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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STAFF
System Maintenance 5pm August 8th 2022 4 comments, last comment by Jared Broad,
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345
TypeErrorTraceback with Custom Indicator Documentation Example in Jupyter Notebook 1 comment by Louis Szeto,
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Local Lean Backtest - Custom Charts from Output json file in Jupyter Notebook 1 comment by Louis Szeto,
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KeyError exception: Trying to retrieve an element from a collection using a key that does not exist in that collection 1 comment by Nico Xenox,
C#
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BTCUSD, Second The issue starts from Jan 6th, 2019 05:00 AM; and continues until now 2 comments, last comment by QuantConnect Robot,
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Federal reserve meeting dates 1 comment by Louis Szeto,
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Elegant method for saving opening price for multiple equities? 6 comments, last comment by Justin E,
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Is it possible to simulate forced liquidation due to excess liquidity in backtest and live 1 comment by Louis Szeto,
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StreamReader on local zip data - A local file header is corrupt 3 comments, last comment by Midaroh,
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Backtesting comissions on Micro futures 1 comment by Louis Szeto,
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Logging the 14 day ATR every day 9 comments, last comment by Nico Xenox,
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Availability of statistical tests for data checks and risk analysis 2 comments, last comment by Manav Trivedi,
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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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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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