Acadian builds ‘green screen’ to auto-filter ESG phoneys

The $110 billion quant investor is creating an automated system to spot greenwashers.

One of the world’s largest systematic investors is building an artificial intelligence tool that screens public companies for green credentials—and then engages with firms that it suspects of failing to live up to their promises.

Acadian Asset Management, which runs $110 billion in assets, is training its natural language processing algorithms—text-reading systems that it uses as part of its investing process—to root out so-called greenwashers. The system sends automated emails to the companies

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