SuperMicro (SMCI) extends gains after the Saudi Arabia-based data center company DataVolt signs a multi-year partnership agreement with the beleaguered US chipmaker. AMD’s shares rise after the board approves a $6 billion share repurchase plan that represents 3.3 percent of the company’s current market value, according to data compiled by Bloomberg. Aurora Innovation (AUR) shares fall after Uber announced a $1 billion convertible offering, with the notes exchangeable into shares of Aurora. -----