Quantopian now closes down completely: https://www.bloomberg.com/news/articles/2020-12-16/quant-trading-platform-quantopian-closes-down “In late October, the company announcedit was shutting down. A few weeks later, Quantopian Chief Executive Officer John Fawcett announced that he, his co-founder, and other employees were going to work at the retail brokerage Robinhood Markets Inc.”
Related thread: https://www.elitetrader.com/et/threads/quantopians-community-services-are-closing.351952/
Guess their "hedge fund" made up of customers algo's failed to perform. A bit surprisingly. Implies there was no good algo's at all built there?
Their problem IMO: 1) why would anyone stay with QT if they came up with something that worked, their offering was quite shit (especially after removing the capability to live deploy algos). Like, weak promises that if I win an arbitrary competition you will pay me through an opaque program? 2) the difficulty of coming up with an algo with alpha is massively underestimated by almost all beginners. 3) the availability of people capable of producing alpha tends to be overestimated by institutions as well. It's likely that the vast majority of people with the right competency are already are employed by the industry or will end up there in short order after learning on QT.
I can't think of good reasons why quants with an edge will want to expose their secrets out in public FREE of charge. Doing that will kill the effectiveness of their strategy. Look at how secretive the quant hedge funds are. Quantopian business strategy is doomed to fail given the secrecy of users who do matter.