[U.S. Stock Market's Three Major Indexes Open Lower, Meta Surges Over 5%] According to Golden Finance, on September 9, U.S. Treasury Secretary Besent is set to announce the scale of long-term U.S. Treasury buybacks, causing Treasury yields to soar once again. The three major U.S. stock indexes opened lower collectively, with the Nasdaq down 0.36%, the S&P 500 down 0.25%, and the Dow Jones down 0.37%. Meta surged over 5% following the release of its first personal AI assistant, Muse, which features 24/7 operation, nighttime reflection, and proactive planning capabilities. Apple fell 0.3% as its product launch event kicked off in the early hours, with the first foldable iPhone set to debut. Amazon dropped over 2% after initiating its first pound-denominated bond issuance, totaling £4.25 billion.