Was There Any Sign Coherent Stock Would Run?

Coherent (COHR) stock returned 135.4% in the twelve months to October 12, 2026, against 17.3% for the S&P 500. Sales growth accelerated over those months, and management credits demand from AI data centers. Investors could have anticipated this run only if Coherent's sales and profit metrics were already improving in reports filed before October 2025. So when did the improvement first show up.