Quantitative trading among fund managers and brokerage firms is increasing because technology has broken the bounds of the complexity surrounding model-based trading.

A recent study by Bigdough.com, a financial analysis firm, found that 8.5% of such groups in the US market had a quantitative research component to their work. According to analysis by Celent, the US consultancy, these firms control more than $4 trillion (€3.5 trillion) in assets.