We have probably all heard of Quantopian here and other similar platforms but it does have quite serious downsides such as lack of advanced debugging, limited metrics on performance, unclear ownership of algorithms you create and most importantly the owners of these platforms can often just trade your algorithm without even asking you or sharing in the profits. I am trying to gauge the market opportunity for a similar platform but where the user has a lot more control and offering more advanced features. The platform would be web based, include backtesting and live trading capabilities across stocks and possibly futures with options and other assets a future possibility. Various brokerages would be supported but initially IB would be the focus. It would be offered both as a SaaS with strict confidentiality and as a self hosted solution with the ability to scale. Python is most likely the language you would design strats in but interested in making a generic API so other languages could be used. Of course all this is a lot of work and would require significant investment so I am interested in feedback as I understand this isn't a normal industry and there are a wide variety of participants from hobbyists through to mega corps. Please add any features you would like to see, bug bears with existing platforms, advice and ideas to the comments.