Key Takeaways GNRC stock jumped 50.7% in three months, driven by data center demand and 2026 recovery expectations.GNRC's C&I segment gains from data center growth, with backlog hitting $400M and sales set to rise strongly.GNRC faces risks from residential demand volatility, margin pressure and exposure to data center cycles.Generac Holdings Inc. (GNRC) has staged an impressive rally, with the stock having risen 50.9% in the past three months, outpacing the Machinery General Industrial and the broader Indus ...