Despite Samsung reporting its highest quarterly revenues in over two years, the company's Korea-listed shares fell 1% on Tuesday. The stock is down 24% this year as Samsung has so far struggled to generate a return on its investments in artificial intelligence while several of its core businesses lose market share. Slowing PC and mobile demand has weighed on the memory market, including for dynamic random-access memory, or DRAM, an area where Samsung has traditionally dominated. The company has also lagged in the market for high-bandwidth memory chips, which are critical components of Nvidia's GPUs, with competitors SK Hynix and Micron better equipped to profit off the AI boom.