<span style="color: #222222;">The three major US stocks climbed yesterday on a boost from technology stocks while signs of progress in developing a COVID-19 vaccine also supported the indices. News that Nvidia Corp will buy UK-based chip designer Arm from Japan's SoftBank Group Corp for 40 billion dollars also uplifted the wall street indices.<br />''<br />''The Dow Jones Industrial Average climbed 1.2 percent, the S&P 500 surged 1.3 percent while the Nasdaq Composite index zoomed 1.9 percent.</span>