From whom? The stock value goes up. The sellers get the price they want. Who looses?
From whom?
This is exactly the loony left-wing point of view, that the only way to get rich is by taking money from the poor. In real life we know that the poor don't have any money and that the best way to get rich is to go to where rich people are an hang around.
It's why folks all over the world work to move to the U.S., they want to live here and it's gotten out of hand so bad that we're even building a wall...