Amprius Technologies (AMPX) shares ended the last trading session 13.7% higher at $10.39. 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 35.6% gain over the past four weeks.This increased investor optimism is mostly due to a significant increase in trading volume and positive investor sentiment driven by recent favorable analyst ratings and the company's strong purchase order momentum.This battery maker is expecte ...