Generac Stock Jumps 45% on Up to $8 Billion Amazon Data Center Generator Deal

Generac Holdings and Amazon entered into a transaction agreement on September 16, 2026, under which Generac issued Amazon a warrant to acquire up to 1,693,745 shares of common stock at an exercise price of $200.9266 per share.

How the Warrant Vesting Is Structured

307,954 warrant shares vested immediately, with the remaining balance vesting over the term of the warrant in multiple tranches — contingent on Generac receiving up to $8 billion in aggregate gross payments for backup power generators supplied to Amazon data centers. This structure directly ties Amazon's equity upside to the actual scale of the generator business it awards Generac, rather than granting it upfront regardless of performance.

A Concrete Near-Term Supply Agreement

Alongside the warrant issuance, the companies executed a long-term supply agreement, with initial deliveries of backup generators expected to total $2.4 billion in 2027 and 2028 — a specific, near-term commitment distinct from the larger $8 billion figure that represents the warrant's full contingent upside.

A Dramatic Stock Reaction

Generac shares jumped as much as 45% in after-market trading on the news — one of the more dramatic single-day stock reactions to a supply agreement this earnings season, reflecting how significantly the market re-rated Generac's growth prospects on the strength of this single customer relationship.

Part of a Broader Pattern of Warrant-Linked Power Deals

The arrangement follows a pattern of tech giants striking warrant-linked deals with power equipment suppliers to keep up with AI-driven electricity demand, with Oracle taking a similar stake in fuel-cell maker Bloom Energy in April 2026 — suggesting this deal structure, tying supplier equity upside to actual delivered capacity, may be becoming a standard mechanism for hyperscalers securing power infrastructure at scale.

What This Means for Data Center Power Infrastructure

A hyperscaler committing up to $8 billion to a single backup generator supplier, structured through equity warrants rather than a simple purchase order, is a specific signal of just how seriously AI data center operators are treating power infrastructure security — worth watching as a template other power equipment suppliers may seek to replicate with other major cloud providers.