Quantopian was a company that aimed to create a crowd-sourced hedge fund by letting freelance quantitative analysts develop, test, and use trading algorithms to buy and sell securities.

[18][19][20] Quantopian provided them with free data sources and tools, largely built in the Python programming language.

[22] The business model capitalized on a trend jokingly dubbed "the latest DIY craze" by the Wall Street Journal.

[24] These integrations were continued by the community who started the open source project Zipline-Live [25] In 2018, the company announced the availability of an enterprise software product for asset managers, in partnership with FactSet.

"[38] After publishing the termination of its services for quants, the Quantopian team disclosed their intent to integrate with commission-free broker Robinhood Markets.

[39] To fill the gap left by Quantopian, a number of traders have relied on open source projects like Gekko and Freqtrade.

a group of cloud-based tools has emerged to service the needs of quants with a specific focus on cryptocurrencies including 3commas, Mudrex, and Tuned.