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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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C#
219
Problems with LEAN in Mac 1 comment by Jack Simonson,
Py
312
Bollinger Band problem 1 comment by Gurumeher Sawhney,
Py
69
Unable to go live 1 comment by Michael Manus,
C#
219
Efficient calculation of Indicator 1 comment by Hugo Lu,
C#
41
Runtime Error: Algorithm took longer than 10 minutes on a single time loop. 1 comment by Jack Simonson,
C#
41
Warmup Universe Standard Deviation 1 comment by Jack Simonson,
Py
29
When I backtest I got error: "Received type of Tick but expected QuoteBar" 5 comments, last comment by Jack Simonson,
Py
165
Visual studio IntelliSense Support for Python 14 comments, last comment by Jared Broad,
C#
30
Algorithm Framework Trading for Options 1 comment by Jack Simonson,
Py
249
Modified Iron Condor 1 comment by Halldor Andersen,
Py
13.8k
Building an AlphaModel using a custom indicator, based on different time frames 1 comment by Jack Simonson,
Py
9.8k
Problem with Scheduled Functions 3 comments, last comment by Halldor Andersen,
Py
STAFF
Bitfinex and QuantConnect 5 comments, last comment by David Liao,
C#
288
Boot camp, Buy and Hold, Set Data Normalization Mode, Exercise failed 1 comment by Halldor Andersen,
Py
60
Looking For Partners to Work Together 4 comments, last comment by Naeem Semerkant,
C#
19.6k
Is it possible to backtest / trade other cryptos beyond BTC, ETH and LTC? 6 comments, last comment by Pi..R,
Py
310
Accessing last values on Indacators 3 comments, last comment by Halldor Andersen,
Py
13.8k
How to define the execution frequency in the Algorithm Framework? 1 comment by Jack Simonson,
Py
2.6k
OnData Time Change? 2 comments, last comment by Jeff Ward,
Py
2.6k
Options Broker 2 comments, last comment by Jeff Ward,
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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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