Jared Broad: QuantConnect CEO and the Open-Source Quant Trading Stack | Blushing Quants #4

A sit-down with Jared Broad, CEO of QuantConnect, to unpack how one platform turned quant research, backtesting, and live execution into an end-to-end workflow. Jared explains why QuantConnect went open source in an industry that usually keeps everything secret, and why hedge funds waste years rebuilding the same infrastructure instead of focusing on alpha.

We break down what makes Lean “institutional-grade,” including its plugin architecture for brokerages, fees, and datasets, as well as the complex engineering behind corporate actions, ticker changes, and extended historical coverage. Jared also shares how QuantConnect validates data quality by cross-checking vendors, running automated “spiders", and using human review when needed.

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