Nvidia reached another milestone in its rise to becoming one of the world's most important companies: the first publicly traded company to reach a market value of $4 trillion.

A class-action lawsuit argues that funding a new domed stadium for Ohio's Cleveland Browns using residents' unclaimed funds violates multiple provisions of the state and federal constitutions.

School districts were supposed to begin receiving the money on Tuesday.

Municipal bonds can be good insurance against inflation — and interest is tax-free. But as with all investments, understanding risk is key.