ON Semiconductor is trading 5.78% higher at $84.71 after revising its proposed Synaptics acquisition to an approximately $5.7 billion all-cash deal, replacing the roughly $7 billion all-stock agreement. - Amended terms set $123 per Synaptics share; the companies announced the revision on October 1. - This is a second consecutive daily gain, following a 4.18% advance on October 1. A broader semiconductor rally may also be supportive, but the deal change is the clearest company-specific explanation for October 2.