Amprius Technologies is trading at $8.38, up 10.49%, alongside supportive technology-sector sentiment; no clear company-specific catalyst has been identified for the October 21 move. - XLK was up 1.54% during the regular session, providing market context but not proof of a direct cause; no trading-volume data was provided. - The company said it will report third-quarter results on November 11; this is a scheduled-results notice, not a results release.