Community platform shut down November 14, 2020, after a wind-down announced by CEO John Fawcett in October 2020; the domain no longer resolves on October 8, 2026. source
The free crowd-sourced quant research platform and lecture series that closed in November 2020 when its fund model did not work out. Its open-source libraries and lecture notebooks are still on GitHub and are a free way to learn factor research in Python. If you find a site selling 'Quantopian' courses or access, it is not the original.
The facts
| Category | Quant and trading prep |
|---|---|
| Website | quantopian.com |
| Based | Boston, MA · founded 2011 |
| Format | online-self-paced |
| Programs | Free crowd-sourced alpha platform with lecture series and backtesting (historical) |
| Length | Not applicable; free platform. unknown |
| Tuition | $0 Was free to users; the business model was licensing user algorithms to its own fund. verified |
| Financing | free Free while it operated. |
| Admission | open Historical; open sign-up. |
| Stack | Python, zipline, pandas, factor research, Quantopian Lecture Series |
Outcomes
This program does not publish job-placement or salary outcomes. Treat any number you hear from admissions as unverifiable.
Interview-prep depth
The syllabus is not public in enough detail to score. None; it was a research platform.
Whatever the program covers, the interview itself is free to prepare for here: coding patterns, system design, practice prompts, company guides.
What a careful reader should know
Raised $48.8 million (Spark Capital, Khosla, Bessemer, Point72 Ventures, Andreessen Horowitz) before closing; the team joined Robinhood after the shutdown. Its open-source pieces (zipline, pyfolio, alphalens) and the lecture-series notebooks remain on GitHub and are still used as free quant-finance study material. People still search for 'Quantopian lectures'; QuantConnect is the usual replacement for the hosted backtester.
Third-party signals: Reddit sentiment positive. Graduation-time star ratings are collected by the schools; weigh them accordingly.
Sources (1)
This directory takes no lead fees or placement payments from any program. Where a program runs an affiliate scheme we say so on its page and mark the link. Facts carry a badge: verified means we read it on a primary source on the date shown, reported means a third party said it, unknown means nobody we trust has published it.
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