three major U.S. stock indexes all opened slightly higher, with the Nasdaq up 0.42%, the S&P 500 up 0.34%, and the Dow up 0.19%. Quantum computing concept stock Qunten fell more than 13%, with its first-quarter revenue falling short of expectations. Alibaba rose about 3%, with the company issuing $3.17 billion in 2032 convertible notes.