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Generac Stock Jumps 20% After Landing an Amazon Deal Worth Up to $8 Billion

Amazon will buy backup generators from Generac to power its data centers under a long-term agreement that could run through 2033.

By THRYV Money Desk·Published September 18, 2026·Updated September 18, 2026·4 min read
Generac Stock Jumps 20% After Landing an Amazon Deal Worth Up to $8 Billion
Business · Illustration commissioned for THRYV. Photography is replaced with original imagery as each story is produced.

The takeaway

Generac shares rose about 20% after disclosing a long-term supply deal with Amazon for data-center backup generators, worth $2.4 billion in initial 2027-2028 deliveries and up to $8 billion total through 2033. Amazon also received warrants to buy up to 1.69 million Generac shares at $200.93 each, tied to future purchases.

Generac Holdings shares climbed roughly 20% on September 17 after the company disclosed a long-term supply agreement to sell backup generators to Amazon for its data centers. The deal underscores how badly hyperscale cloud and AI companies need reliable backup power as they race to build out computing capacity.

The numbers

  • Initial deliveries under the agreement are worth $2.4 billion, spanning 2027 and 2028
  • The total agreement could be worth up to $8 billion, with additional purchases running through 2033
  • Amazon received a warrant to buy up to 1.69 million Generac shares at $200.93 each; more than 300,000 of those shares vested immediately, with the rest tied to future generator purchases

Why this matters beyond Generac

The deal ties directly to Amazon's data-center buildout for cloud computing and AI workloads, which requires backup power capable of keeping servers running through grid outages. It lands the same week the U.S. House passed the Ratepayer Protection Act 417-3, a bill that would require large electricity users — including data centers drawing 100+ megawatts — to cover the incremental cost of grid upgrades themselves rather than passing them to residential ratepayers.

The broader market backdrop

Generac's jump came a day after the Federal Reserve's rate decision triggered an initial sell-off, with Fed Chair Kevin Warsh striking a hawkish tone on inflation. Markets rebounded the next day as oil prices fell and the 10-year Treasury yield eased 6 basis points to 4.95%; the Nasdaq Composite, S&P 500 and Dow Jones Industrial Average all posted gains, with the Nasdaq up 1.69% at midday.

Brands mentioned

Sources

This article is original writing by THRYV. We link to primary reporting and official documents rather than reproducing them.

  1. Generac Lands $2.4 Billion Generator Deal With Amazon — The Motley Fool
  2. Stock Market Midday, Sept. 17: Stocks Rebound From Post-Fed Selloff, Generac Soars 20% — The Motley Fool
  3. Top Tech News Today, September 17, 2026 — Tech Startups

Why you can trust this article

Written and edited in-house by the THRYV Money Desk. We do not republish or reword agency copy, and we do not invent quotes, statistics, testimonials or ratings. Where figures move frequently, we point you to the primary release rather than printing a number that will be out of date. Advertising and affiliate partnerships have no influence on our reporting — see our editorial standards, fact-checking policy and affiliate disclosure. Spotted an error? Write to newsroom@thryv-news.com.

General information only. Not personalised financial, medical or legal advice.

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