Lauren R.
Innovative leading edge technology
Innovative leading edge technology, leveling the playing field for retail trading and investing.

QuantConnect provides an algorithm backtesting tool and financial data so engineers can design algorithmic trading strategies. We democratize algorithm trading technology with a fully open-source platform to empower investors.Our community of 220,000 engineers designs investment strategies in Python or C# to trade through to their brokerage accounts. Each month we do $1-2B in notional volume, and serve 5,000+ users.
QuantConnect (quantconnect.com) has 65 customer reviews on Five Star Index, with an average rating of 4.1 out of 5.
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Investments & Wealth · Wilmington, Delaware
Excellent

Investments & Wealth · Dover, Delaware
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Investments & Wealth · Wilmington, Delaware
Excellent

Investments & Wealth · Dover, Delaware
Excellent
Showing 47 reviews with 5 stars · Clear filters
Lauren R.
Innovative leading edge technology, leveling the playing field for retail trading and investing.
Joe
This is a pretty unique business. I've learned a lot as an investor just creating and running simulations here. I really wish these folks the best and hope they can continue to grow and thrive.
Leo
Have been using QC as an individual for 3 years, has been a smooth and consistent experience the entire time. Quantconnect makes building a trading algorithm highly accessible to anyone with an idea and a bit of coding knowledge. Handling all the background infrastructure for you, they make it easy to build your algorithm, backtest against market data, and even deploy it live with a supported brokerage. Sometimes it can be a bit difficult to learn the syntax and what a method does, but there is a lot of documentation available, as well as community forums. All this has really helped me focus on my strategy rather than building infrastructure from the ground up and I would definitely recommend them to anyone looking to try out quant finance or algorithmic trading.
Will
Amazing platform! Simple to use. Gives you all the financial datasources you can think of at your fingertips. The ability to create unlimited algorithms. Creating algorithm takes just a few lines of code. Connect your favorite brokerage firm in minutes. Deploy in minutes. Great support and documentation. If you are not sure how, just ask Mia, there new chatgpt like tool, that will write the code for you or answer any question you may have.
Anastasiya B.
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,
Arthur D.
Great service and team
Craig M.
Hello. I've read all the reviews to date and thank those who contributed. While I understand some of the negative sentiments, I strongly disagree with them. While, many years ago, I had more than a decade of paid software engineering/coding experience, I'm not the smartest or best I've ever met and I mostly worked in VBA with a smattering of C++, Java, and various scripting languages. My situation is that I evaluated numerous back testing platforms including those on popular trading applications and others, and none offered everything I needed. Quantconnect was the only platform which allowed me to import essential data from outside sources. (Ex-Dividend dates and amounts from IEX Cloud). I use QuantConnect in conjunction with an options-hedged dividend stock fund. My needs are to evaluate different fundamental statistics and technical measures and to correlate those to profit/loss where the downside is protected by puts. We sell calls to offset the cost of the puts, but these can limit our upside. Thus, we need to "tune" the trade. So, with that background, let me get to the point. I've been a minimum-charge account/user for 4 years and recently upgraded. The entire team from Jared and Alex, to so many others have been impressively responsive, incredibly knowledgeable and reassuringly passionate every step of the way. Yes, Quantconnect can be daunting and I agree the documentation may seem cumbersome at first. However, if your needs are a step beyond what the top 5 trading platforms offer in backtesting or you don't want to pay extra for data or expend the time learning and setting up such a platform, then QuantConnect is for you! Pros-- -Scalable: I've run a universe of 700+ stocks for 2 years (as of writing this) with Options +/- 4 strikes and <=1 year expiration. QC processed over a 2 billion data points and completed in 90 minutes. -Support: As other reviewers noted, there is complexity and often more than one approach. The support engineers have been great. They're attentive and patient and have ALWAYS found a solution. - Comprehensive: I have found no other platform that allows the complexity, breadth and depth that QuantConnect does. Cons - none that I can think of Wish List -- I would like to understand better the inner workings or "how the sausage is made" That would probably help me develop faster, but at the same time, LEAN is open source on GitHub. I could/should acquire the understanding I need. I hope this helps you evaluate QuantConnect for your needs. Thank you, Craig
Fancy N.
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.