Share repurchase programs are typically viewed positively by the market as they often lead to an increase in the stock price. By reducing the number of shares outstanding, earnings per share (EPS) may increase, potentially making the stock more attractive to investors. MetLife's announcement of a $3 billion share repurchase authorization reflects confidence in its financial stability and a proactive approach to managing its capital structure, which could lead to a short-term positive impact on its stock price.