They Just Re-Invested Your 401(k), for Your Own Damn Good

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Most programmers have no idea how to suture a wound. Nurses don't make their living from puff pastry. Chefs aren't relied on for their Javascript expertise. And chances are nearly all of them are lousy investors.

For that reason, the hottest trend in 401(k) plans is making investing easier for employees. More plans automatically enroll workers in target-date funds or other professionally managed, diversified options. Plans may also automatically increase contribution rates each year. Employees can opt out, but few do.