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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
30
Moving Average Envelope 6 comments, last comment by Rodolphe Wisniewski,
C#
9
Is Binance Crypto Trading Module Still Under Development ? 1 comment by Halldor Andersen,
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694
Framework algorithms must specify a portfolio construction model using the 'PortfolioConstruction' property 1 comment by Jake Mitchell,
Py
2.5k
High Low at 3:45pm consolodator Started by Mathieu Robitaille,
Py
29
IB Futures Algo 1 comment by Jack Simonson,
Py
2.1k
History for ATR 2 comments, last comment by Halldor Andersen,
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369
DateRules.Every cannot take only one day 2 comments, last comment by Jack Simonson,
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69
Getting started with python in visual studio 11 comments, last comment by Jack Simonson,
C#
25
Trading with alpaca 6 comments, last comment by Jared Broad,
C#
208
Use crypto time and sales data locally 1 comment by Jared Broad,
Py
136
Self.Portfolio.Invested does not seem to work for options. Is there an alternative? 13 comments, last comment by Eugene Ng,
Py
694
Self.ActiveSecurities holds nothing when using ManualUniverseSelectionModel 1 comment by Jake Mitchell,
C#
59
When is QuantConnect going to support C# 7.3? 1 comment by Jared Broad,
Py
694
TypeError: module.__init__() takes at most 2 arguments (3 given) 10 comments, last comment by Jake Mitchell,
C#
89
MAT, Hour The issue starts from Feb 14th, 2019 12:00 AM; and continues until Feb 15th, 2019 11:00 PM 2 comments, last comment by QuantConnect Robot,
Py
STAFF
Standardized Unexpected Earnings 11 comments, last comment by Shile Wen,
C#
58
Smoothed / Shifted moving average (Bill Williams Alligator) 2 comments, last comment by FiliusBonacci,
Py
5.6k
Bad instruments in coarse universe selection (example: ZXZZT) 1 comment by Jack Simonson,
C#
1.8k
Equity options backtesting data updates 3 comments, last comment by Jack Simonson,
Py
72
Wrong prices for DE30EUR 5 comments, last comment by Jack Simonson,
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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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