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Why Wall Street still needs human traders

A rush into algorithmic trading is setting up a concentration of faith in computerized investment, a trend that could backfire in intensified volatility and lowered returns.

What's going on: By 2025, Wall Street firms are expected to shed 10% of their work force — 230,000 jobs — as they embrace intelligent algorithms, trading that relies on crunching mountains of data and sometimes anticipating the actions of human traders (see chart, below), according to the financial consultancy Opimas.

Data: Opimas; Chart: Andrew Witherspoon / Axios