[U.S. stock market opens with three major indexes rising, Meta signs nuclear energy agreements with multiple parties] At the opening of the U.S. stock market, the Dow Jones rose 0.18%, the S&P 500 rose 0.18%, and the Nasdaq rose 0.07%. Oklo surged 16%, Vistra Energy rose 15%, and Meta Platforms announced the signing of a nuclear energy supply agreement with Vistra, Oklo, and TerraPower. Stocks of some mortgage institutions strengthened after Trump ordered relevant agencies to purchase $200 billion in mortgage bonds.