https://www.reuters.com/article/us-nvidia-results-research/nvidia-set-to-open-at-record-on-soaring-volta-chip-demand-idUSKBN1DA1TC >Shares of Nvidia Corp are set to open at a record on Friday, after it posted stellar quarterly results powered by higher demand for graphics chips used in gaming and data centers, and the rapid adoption of its new Volta chips for AI and driverless cars.