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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
297
Calculating timedelta from orderticket? 1 comment by Adam W,
Py
243
Possible delay from Warmup? 1 comment by Vladimir,
Py
1.5k
Renko Percentage consolidator 1 comment by Varad Kabade,
Py
526
Is there a way to enlarge the coding area? 1 comment by Fred Painchaud,
Py
545
Unable to replicate EmaCrossAlphaModel with Local Data & LEAN 17 comments, last comment by Nottakumasato,
Py
197
Problem with the Algorithm Environment 4 comments, last comment by Alexandre Catarino,
Py
72
Reinforcement Learning for Trading? 4 comments, last comment by Bear,
Py
2.3k
Do indicators include after hours and premarket data if extendedMarketHours is set to true for the security. or is there another step? 1 comment by Fred Painchaud,
Py
2.2k
Inaccurate Prices for Open, High, Low, Close 1 comment by Vladimir,
Py
153
Total trades = 1, why? 1 comment by Vladimir,
Py
1.3k
5 min trade bar 13 comments, last comment by Fred Painchaud,
Py
27.6k
IsShort method return an error Runtime Error: Trying to dynamically access a method that does not exist throws a TypeError exception. 4 comments, last comment by Mislav Sagovac,
Py
526
ERJ, Daily The issue starts at the start of the data; and continues until Jun 7th, 2006 Started by KevinW,
Py
526
CNI, Daily The issue starts at the start of the data; and continues until now Started by KevinW,
Py
52
Resources for studying strategies 1 comment by Fred Painchaud,
Py
3.8k
Log previous day's low when on new market orders are filled 1 comment by Vladimir,
Py
3.8k
Undiscript error - Fatal Unhandled Exception 1 comment by Louis Szeto,
Py
5.5k
Futures Indicator Rolling Window Not Storing Values 1 comment by Louis Szeto,
Py
545
Correct way of adding indicators on consolidated bars with QCAlgorithm 9 comments, last comment by Nottakumasato,
Py
545
Connecting parameter combinations to results in LEAN optimization 2 comments, last comment by Nottakumasato,
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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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