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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
2.6k
Notebook plotting issue 2 comments, last comment by Francesco Baldisserri,
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263
Manual Update of IndicatorExtension? 1 comment by Derek Melchin,
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983
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Python Beginner Seeking Advice and Help w/ this error! 4 comments, last comment by Jesse Fleming,
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IB Gateway Version 10.12 1 comment by Louis Szeto,
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228
Holdings amount not changing for stock splits? 1 comment by Louis Szeto,
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5k
PearsonCorrelationPairsTradingAlphaModel closing only one side of the stat arb trading pair? 1 comment by Lucas ,
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History Daily Bars in Minute Resolution Algo 1 comment by Louis Szeto,
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13.4k
MarketCap data error "read only" 1 comment by Nico Xenox,
C#
228
Issues with stock splits not correct by Split Adjusted or Adjusted prices, Minute The issue starts from Sep 20th, 2018; and continues until Sep 22nd, 2018 Started by Panda Trader,
C#
228
Issues with stock splits not correct by Split Adjusted or Adjusted prices, Minute The issue starts from Aug 11th, 2022; and continues until now Started by Panda Trader,
Py
2k
Indicators at 'Timedelta' Resolution? Is this possible? 1 comment by Nico Xenox,
C#
359
Custom module in Workspace 10 comments, last comment by Derek Melchin,
Py
367
Backtest Handled Error: Exceeded maximum series count: Each backtest can have up to 10 series in total. 1 comment by Nico Xenox,
Py
150
LEAN & Docker on MacOS 5 comments, last comment by Derek Melchin,
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Working with both Large and Small Caps Universes 1 comment by Nico Xenox,
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2k
Universe Selection - Gap Up Scanner 3 comments, last comment by Nico Xenox,
Py
95
Model Slippage on SPY - Experience? 1 comment by Louis Szeto,
Py
STAFF
Survey & Sneak Peek! Help us name our new ecosystem 7 comments, last comment by Jared Broad,
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