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Pisani explains the democratization of quant trading

Steve Cohen is putting up to $250 million into a new fund managed by Quantopian, a trading platform that uses crowdsourcing to create new algorithms to invest in the markets.

My colleague Kate Kelly covered the story here.

Quantitative analysis seeks to use mathematics and algorithms to tease out relationships between events, in this case, the relationship between stock prices and economic events or other kinds of data.

Here's what's interesting about this to me: more than 30 years after quantitative analysis came into vogue, it is having another "moment." Why?