It's an interesting idea, but most successful retail algo traders probably won't trust their bread-and-butter algos to a cloud-type solution. I've been algorithmically trading for a few years now, and I've invested money into Ninjatrader, where I program my algos and run things from my own computer.
If anyone had their own algos, they would probably be too paranoid that Quantopian would run backtesting on every single algo, and cherry pick the best ones for themselves. Whether or not it's true doesn't matter, it's most likely the common thought process that any successful algo trader would have.
That would leave only the inexperienced and beginning traders that would be more apt to fail, since algo trading is very, very, very hard.
If anyone had their own algos, they would probably be too paranoid that Quantopian would run backtesting on every single algo, and cherry pick the best ones for themselves. Whether or not it's true doesn't matter, it's most likely the common thought process that any successful algo trader would have.
That would leave only the inexperienced and beginning traders that would be more apt to fail, since algo trading is very, very, very hard.