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QuantConnect

Cloud algo-trading platform with backtesting, research and live deployment via LEAN

About QuantConnect

QuantConnect hosts the open-source LEAN engine in the cloud, so you can research, backtest and deploy algorithms in Python or C# against bundled historical data. It connects to many brokers for live trading and covers equities, options, futures, forex and crypto. Strong fit for quants who want data and infrastructure included.

Best for: Programmers who want institutional-grade data and a hosted backtest-to-live pipeline.

Pros

  • Large bundled historical datasets
  • Open-source LEAN engine
  • Backtest and live trading use the same code

Cons

  • Steep learning curve
  • Live trading nodes and extra data cost money
  • Free tier has tight file and session limits

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