Pershing Square Capital Management Chief Executive Officer Bill Ackman said he took down a critical post about UnitedHealth Group Inc. after the company’s lawyers told him the claims about the company ...

Leading AI chip stocks got a lift this week from hyperscale cloud computing companies reiterating their hefty data center ...

Palantir stock hit a new high on Feb. 6. Palantir could be Wall Street's new darling, usurping Nvidia. But bears point to ...