Healthcare stocks were mixed in late-afternoon trading Tuesday following the Senate's vote to proceed with discussions to repeal and replace Obamacare.

Aetna Inc (AET) stock and Magellan Health Inc (MGLN) - Get Report stock traded up as Anthem Inc (ANTM) - Get Report , Humana Inc (HUM) - Get Report , UnitedHealth Group (UNH) - Get Report and Cigna Corp (CI) - Get Report stock traded down.

Vice President Mike Pence, in his role as President of the Senate, cast a tie-breaking vote to add to edit and delete from the healthcare bill as it stands. The close-call vote brought Senator John McCain back to the Capitol to vote days after he was diagnosed with brain cancer.

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