Can Infosys buyback offer trigger rally in the stock? History may have a clue

The first buyback of Infosys was announced on 16 Aug 2017. The stock gave negative returns of 8.40% a week after the buyback was announced. In 2019, the stock was higher by 8.4% a week after the announcement while 2021 left it with a loss of 3.3% after a week.