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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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C#
493
Multiple, Daily The issue starts from Jan 1st, 2018; and continues until Dec 31st, 2019 Started by Living Fire,
Py
983
Retrieve both raw and adjusted historical data in algorithm (equities, universe selection) 3 comments, last comment by Louis Szeto,
Py
7.4k
Is this normal, 199minutes, 200 minutes and 201 minutes gives me completely different results 9 comments, last comment by Louis Szeto,
Py
205
How to liquidate part of the portfolio please? 1 comment by Vladimir,
Py
1k
Runtime error after the update. 8 comments, last comment by Juhwan Kim,
Py
440
Notebook termcolor colored do not work 2 comments, last comment by Alexandre Catarino,
Py
4k
Issues with version 3.0 1 comment by Gustavo A.,
Py
239
Lean GUI subscription 5 comments, last comment by Louis Szeto,
Py
101
Futures Data not accessible 1 comment by Yuri Lopukhov,
Py
1.3k
'QCAlgorithm' is not defined 2 comments, last comment by Vladimir,
Py
1.1k
Search in all files for project 1 comment by Louis Szeto,
Py
1.3k
Changing High and Low (part 2) Started by Blackpanther,
Py
7.5k
[Feature Request] Integrate rolling window into indicators 7 comments, last comment by Vladimir,
Py
641
FRED Data availability 3 comments, last comment by Vladimir,
Py
621
How to reduce data points and consolidate time frames to do multiples in minutes. 4 comments, last comment by Vladimir,
Py
30
Is there a way to feed what to buy/sell every day on a csv? 1 comment by Louis Szeto,
Py
1.1k
Missing param/ error in the code 6 comments, last comment by Manav Trivedi,
C#
84
Checking if data exists in the local data folder 4 comments, last comment by Super Richman,
Py
2k
How to get open and close price of candle based on scheduled event? 3 comments, last comment by Vladimir,
Py
29
Missing low column in history for AAPL 3 comments, last comment by Vladimir,
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