Long time believer, first time promoter. I've been using Quantconnect for about two years but they've just released new capabilities for options research, based on user feedback, that prompted me to add a review. They listen to, care about, and build new features for their users (free features). Highly recommend.

Shady site Shady site not sure if the team behind are trustworthy with holding your algos data. I found other frameworks like backtrader that are easier to pick up and get working with quickly than LEAN. LEAN is poorly documenting making learning a huge hurdle. Also, I question the stability of their site because of the amount of bugs you can find in their UI and some that I encountered in plotting during backtrading. If you need an online IDE, Quantopian is far more reliable and documented and quicker to work with but still could have issues with data privacy.

I wasn’t a programmer I wasn’t a programmer, took a python basics course on youtube and their free bootcamp course and I was surprised how quickly I picked up object oriented programming and algorithmic trading coding on their platform. The stocks data is free up to seconds timeframe, after a long research on competitors I choose quantconnect and it was up to my expectations.

QuantConnect is an amazing service!!! QuantConnect provides an amazing service with their data and servers and the ability to run algorithms as if I were a hedge fund. I wouldn't be where I am without QuantConnect!!!

I've been using it for around 6 months I've been using it for around 6 months. My bot is not ready yet, but it's still my best choice for these privileges: 1. connection with the interactive brokers 2. easy to use Python 3. Real market data is available 4. many built-in Python libraries. I will add here that I started a very nub in coding, and it is not easy to begin there, I mean things like data collection, especially for futures (I still haven't tried Options so far). With the help of CHatGPT which also knows the QuantConnect environment, it is now possible to code my own professional strategy for trading,