Luminar Technologies, Inc. (LAZR) shares ended the last trading session 27.3% higher at $8.48. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 14.7% loss over the past four weeks.Luminar’s yesterday surge was likely fueled by growing optimism around the semiconductor sector. Investors are also pushing the share price higher on speculation that NVIDIA might unveil updates about its collaboration with Luminar during ...