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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
542
About tick in data.Ticks 2 comments, last comment by R.mat faridi,
Py
131
Is it possible to Schedule an Event 30 seconds before Market Close? 3 comments, last comment by Derek Melchin,
Prevent ATR Updating 1 comment by Derek Melchin,
Py
313
Different method calling sequence when switching from Day resolution to Minute resolution 2 comments, last comment by Shile Wen,
Py
240
Why doesn't any pair trading algorithm listed here generate any reliable return 1 comment by Shile Wen,
Py
27.7k
Does the live trading need data from Data folder? 1 comment by Shile Wen,
Py
29
Looking for a coder to team up for equity option volatility strategy Started by Duke He,
Py
44
Problems getting data into local research 1 comment by Derek Melchin,
Py
252
Self.Portfolio.MarginRemaining gives the wrong value? 1 comment by Shile Wen,
C#
339
Transforming Data into Lean Format: Dividend, Stock Split, Capital Reduction, Delisting 1 comment by Derek Melchin,
C#
118
My first QuantConnect indicator - the Percentage Volume Oscillator 8 comments, last comment by Derek Melchin,
Py
238
Issues Accessing historical Quandl data in Research Notebook 3 comments, last comment by Louis Szeto,
How to store ATR as a fixed value 1 comment by Derek Melchin,
Py
260
ObjectStore 3 comments, last comment by Derek Melchin,
Py
540
Custom Runtime Statistic from Desktop 1 comment by Derek Melchin,
Py
1.6k
How to filter out weekly expiries when using OptionChainProvider ? 2 comments, last comment by Pierre Vidal,
Py
645
Backtest broken - SetHolding wrapper seems to be broken 1 comment by Jay Ryu,
Py
7.6k
Help with QuoteBar rolling window 1 comment by Derek Melchin,
Py
3.5k
Problem with rebalance 1 comment by Vladimir,
Py
167
How can I max the Rolling Window Size? 1 comment by Derek Melchin,
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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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