Generac Stock Rockets 40% After Amazon Locks In $2.4 Billion Deal

Generac just landed the biggest contract in company history — and investors piled in within minutes of the news breaking.

Shares of the generator maker surged more than 40% in after-hours trading Wednesday after Generac disclosed a new long-term supply agreement with Amazon. The deal has the company building backup power generators for Amazon's sprawling data center network, with initial deliveries expected to total roughly $2.4 billion between 2027 and 2028.

That's a staggering figure for a company that built its name selling generators to homeowners riding out storm season. Generac is now squarely in the AI infrastructure trade, supplying the physical backbone that keeps hyperscale data centers running when the grid can't.

The filing, reported Thursday by Reuters, shows the arrangement goes well beyond the headline number. As part of the deal, Generac issued a warrant giving Amazon's investment arm the right to buy up to 1.69 million shares at $200.93 apiece.

About 307,954 of those shares vested immediately. The rest unlock in tranches as Amazon places more generator orders — with total purchases potentially reaching $8 billion.

Amazon's warrant covers up to 1.69 million Generac shares — nearly 3% of the company — vesting as future generator orders roll in through 2033.

That structure tells you something important: Amazon isn't just buying equipment, it's tying its own upside to Generac's execution. The warrant is exercisable through September 2033, and Amazon has used similar arrangements before with suppliers tied to its AI and cloud buildout, including hydrogen producer Plug Power and air-cargo partner ATSG.

It's part of a broader pattern in how the biggest cloud players are now securing critical infrastructure. Rather than just signing purchase orders, Amazon is taking equity-linked positions in the companies it depends on — a signal it expects the relationship, and the spending, to keep growing for years.

For retail investors, GEN is now a direct way to play the power-constraint story hammering the AI trade. Data centers are being built faster than utilities can hook up new grid capacity, and backup — sometimes primary — generation is becoming a bottleneck all its own.

Generac's core residential and commercial generator business hasn't gone anywhere, either. This deal effectively adds a second growth engine on top of a business that was already profitable and well-established, rather than replacing it.

The stock's 40% pop already prices in a lot of good news, so chasing it Thursday morning carries real risk. A pullback toward the pre-announcement range would be a more sensible entry for investors who missed the initial move and still want exposure.

Watch for follow-on orders from other hyperscalers as the real confirmation signal here. If Microsoft, Google or Meta strike similar deals with Generac or its competitors, it validates this as a durable theme rather than a one-off contract.

The obvious risk: customer concentration. A multi-billion-dollar Amazon relationship is great until Amazon's own data center capex plans shift, and the warrant dilution — while modest at roughly 3% of shares outstanding — is a cost existing holders should factor in.

It also puts Generac in rarified company. Very few industrial-equipment makers get this kind of direct financial alignment from a hyperscaler — it usually goes to chipmakers and cloud-software vendors, not backup power suppliers.

There's also execution risk on Generac's side. Scaling production to meet a deal this size, on the delivery timeline Amazon expects, is a very different operational challenge than selling standby units to homeowners one at a time.

Bottom line: Generac just became an AI infrastructure stock overnight, and the market re-rated it accordingly — the next move is watching whether other tech giants line up behind Amazon.