The U.S. stock market opened with the Dow Jones up 0.27%, the S&P 500 up 0.58%, and the Nasdaq up 0.94%. Micron Technology (MU.O) rose 9.4% as UBS significantly raised its target price to $1,625, the highest on Wall Street; Pony.ai (PONY.O) surged 14.35% with the company's first-quarter revenue increasing 145% year-over-year.