Visa rose over 1% in premarket trading after announcing a $12 billion shares buyback plan.It disclosed a new $12 billion share buyback mandate, bringing the total number of future share buybacks to about $13.2 billion. It is reported that in the previous stock repurchase authorization, as of September 30, 2021, the authorized funds were 4.7 billion US dollars, and as of December 15, 2021, about 3.5 billion US dollars had been used.