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A better title would be 'Quantopian wants to turn stock trading algorithmic for everyday investors'. These techniques are used by quants already (as the article states).

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Well it's a great way for the average investor to get destroyed by transaction fees.

Why would, say, a VWAP order cause more fees than the equivalent limit orders?

I guess his understanding is that trading algorithmically means trading a lot (it doesn't); at low volumes transaction costs dominate.

Even better 'Quantopian wants to make money by driving investors to use its service'

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