A.I. Has Arrived in Investing. Humans Are Still Dominating.

Artificial intelligence programs increasingly help fund managers run their portfolios, but will they will be good enough to replace them?

Machines are starting to take the place of the people who flip burgers, drive across town and, lately, manage stock portfolios.Artificial intelligence is taking on a bigger role in making investment decisions.A.I., including an ability to analyze data and actually learn from it, is considered useful in executing certain investing models, such as high-frequency trading, and in helping fund managers with tasks that rely on gathering and interpreting reams of information. Going a step further, a...