Generac Holdings Inc.

Generac Holdings Inc. is an American energy technology company that designs, manufactures, and sells power generation equipment, energy storage systems, energy management devices, and grid services, generating $4.2 billion in revenue in fiscal 2025. Founded in 1959 in Waukesha, Wisconsin, the company built a dominant position in North American residential standby generators before expanding into commercial and industrial power generation, clean energy, and most recently, backup power for the hyperscale data center buildout. It employs roughly 9,400 people and is listed on the NYSE under the ticker GNRC.

This is a story about a cyclical franchise anchored to a secular thesis. The residential business is a genuine compounder — roughly 6.75% penetration of addressable U.S. households, a proprietary dealer network more than two decades in the making, and a razor-and-blade model that throws off recurring service parts and monitoring revenue — but its quarterly trajectory is hostage to the weather. The C&I business is being reshaped by a demand shock that did not exist at scale two years ago: the need for backup power at every major data center being built in America. The central question is whether the data center opportunity can grow large enough, fast enough, to smooth out the residential cycle and recast Generac as something closer to an infrastructure compounder than a weather-dependent discretionary purchase.

The stock closed at $195.19 on July 29, 2026, which on trailing-twelve-month earnings through the first quarter of 2026 puts the price-to-earnings multiple in the low 60s. At that multiple, the market is already pricing a substantial transformation. The file turns on whether the transformation is real and durable, or whether the current earnings trough — inflated by one-time legal charges but still cyclically depressed — is being mistaken for permanent impairment.