Shares of Astera Labs surged Wednesday, building on a strong gain from Tuesday as investors appeared bullish on the maker of semiconductor-based connectors for cloud and artificial infrastructure ahead of Nvidia earnings and after the company gave upbeat commentary at a technology and media conference. Astera Labs stock jumped 14% to $278.45 on Wednesday, putting it on pace for a record closing high. Investors continued to buy shares after Astera Labs stock shot up 13% on Tuesday.