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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
556
Optimization Wizard doesn't work in latest UI? 2 comments, last comment by Fred Painchaud,
Py
113
Left Sidebar wont close :( PLEASE HELP 7 comments, last comment by Vladimir,
Py
76
Issues with manipulating DataFrame with Apply 1 comment by Varad Kabade,
Py
1.5k
Optimization tool not recognizing parameters 1 comment by Fred Painchaud,
Py
474
Trying to exclude a single stock from universe 1 comment by Fred Painchaud,
C#
172
Kraken Brokerage Issues 6 comments, last comment by Varad Kabade,
Py
68
Implement Error 6 comments, last comment by Fred Painchaud,
Py
119
Fine universe selection not receiving all securities from coarse universe selection 1 comment by Fred Painchaud,
Py
873
Futures Rollovers 3 comments, last comment by Varad Kabade,
Py
4.7k
Warming up a Universe and AlphaModels? 4 comments, last comment by Fred Painchaud,
Py
96
Live trading on coinabse pro or binance 1 comment by Varad Kabade,
Py
373
Code snippet to import OI data 3 comments, last comment by Fred Painchaud,
Py
917
Still Not Selling Crypto after BuyingPowerModel is Overridden 1 comment by Varad Kabade,
Py
184
Resolution.Daily SimpleMovingAverage Indicator using today's intraday value: is this possible using ComputeNextValue or something similar? 7 comments, last comment by Fred Painchaud,
Py
45
Credit spreads algo functions 1 comment by .ekz.,
Py
1k
Quick question for manual universe lambda function 2 comments, last comment by Vladimir,
Py
184
TrueRange.ComputeNextValue vs AverageTrueRange.ComputeTrueRange -- minor implementation difference 2 comments, last comment by Fred Painchaud,
Py
STAFF
Multiple tickers, Fine Fundamental The issue starts from Apr 1st, 2020; and continues until Apr 1st, 2020 Started by Louis Szeto,
Py
79
Is there any way to restore a project that I just deleted? 2 comments, last comment by Jared Broad,
Py
31
Self.Time issue 2 comments, last comment by Fred Painchaud,
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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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