Dow climbs 560 points as optimism grows that Omicron risks are manageable

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US stocks finished higher Tuesday, putting an end to a three-session run of declines. 
President Joe Biden outlined further efforts to combat coronavirus, including sending free test kits to homes. 
A "Santa Claus rally" to close out 2021 is still likely, says CFRA's Sam Stovall. 
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US stocks finished higher Tuesday, rebounding from three straight days of losses, as it appeared