Shares of Meta Platforms jumped 5.7% to $703.44 Monday morning after the company unveiled what it called the first petabit-capacity transoceanic subsea cable, a

Shares of Meta Platforms jumped 5.7% to $703.44 Monday morning after the company unveiled what it called the first petabit-capacity transoceanic subsea cable, adding to a broader rally in tech and AI stocks. The announcement raises a sharp question for shareholders: at what point does an advertising…