If an alien civilization is discovered, how will the capital market react?

Although we humans have never seen an alien civilization, it does not mean that it does not exist. The Milky Way has 654.38+05 billion stars like the sun, and almost at least the same number of planets. Among these planets, there are many terrestrial planets, which should account for at least half of the number of planets. In such a huge number, there must be ecological planets similar to the earth, not to mention that astronomers have discovered hundreds of terrestrial planets within 1000 light-years from the earth. Therefore, even in our galaxy, there must be some intelligent species on the planet that have evolved to the stage of civilization, and most of them have even surpassed the level of human civilization.