AMD rose from 457.06 on September 2 to 521.095 on September 9, a 14.0% gain across the refresh window, with the largest single sessions on September 8 (+5.9% to 505.74) and September 9 (+3.0%). The stock traded 508.01 on September 10. AI-complex leadership rotating decisively toward the second source is the breadth signal this thesis has been waiting for.