Kulicke and Soffa is trading 9.1% higher at $80.10 after-hours, with no confirmed reason for the rebound. - Shares closed October 22 at $73.40, down 9.86% during the regular session. - Earlier reports linked shares to a semiconductor-equipment selloff after Lam Research warned supply constraints could limit equipment revenue. - No company-specific announcement was identified for October 22, and that sector news does not explain the after-hours rise.