Generac's $4.5 Billion Backlog Meets a $200 Stock Price
The data center backlog nearly tripled in ninety days — and the equity has round-tripped the entire Amazon pop to sit almost exactly at the warrant strike.
GNRC · Earnings Call · 2026-10-28
The number went up. The stock went down.
Generac reported the best quarter in its history on October 28: record net sales of $1.29 billion, up 16%, adjusted EBITDA of $256 million at a 19.8% margin, and a full-year EBITDA margin guide nudged to 20.5%–21%. The headline was the agreement with Amazon: initial deliveries of roughly $2.4 billion across 2027 and 2028, with warrants vesting against up to $8 billion of purchases through 2033. That pushed the company's non data center-excluded backlog for data center products to about $4.5 billion, nearly tripling in ninety days. And yet the tape tells the opposite story. GNRC has fallen 26.7% over the last ninety trading days and sits 31.8% below its June 25 peak of $295.16. On a ~60 million share count against an $11.9 billion market cap, the stock is trading near $198 — essentially on top of Amazon's $200.93 warrant exercise price. The market is not paying for the backlog. It is discounting it. Why? Partly the company's own execution: quarterly revenue of $1.2 billion, up 11% year over year through the July quarter is real, and gross margin of 44.5%, up 5.2 points year over year is genuinely strong. But the sector tide is running out. The global AI data center theme in Know Trend's price tape shows six advancers against fifty decliners over the past thirty days, with data center capacity, high performance compute and co-packaged optics all negative. Generac is growing into a shrinking multiple.From $1.25 billion to $4 billion in a single quarter
The substantive change is capacity. In July, Aaron Jagdfeld framed the ambition narrowly: "“We've been focused on this $1.25 billion, $1 billion of that domestically, $250 million internationally by the end of this year” — Aaron P. Jagdfeld, President and Chief Executive Officer · 2026-07-29." Ninety days later he was marking the number up again: "“we have been kind of saying $3.75 billion. So I would probably use something closer to $4 billion, right, just to round it up” — Aaron Jagdfeld, President and Chief Executive Officer · 2026-10-28." Management now guides data center revenue "well over" $2 billion in 2027 from roughly $500 million in 2026, and claims a path to double the entire C&I segment next year — a target that had previously been a three-to-five-year aspiration. The capital discipline behind that is the interesting part. Generac is not building greenfield; it is adding shifts and lines inside existing walls, bringing Sussex online a quarter early, and adding packaging in Belvidere. Capex of $58 million on $1.17 billion of revenue is roughly 5%, and the guided range for the full year is 4%–4.5%. That is the mechanical basis for the claim that the return on this buildout is "stunning" — a claim first floated in July and now being stress-tested by the Q4 ramp.The 2028 visibility, in other words, rests on a customer saying nicer things about 2028 than has been contracted for 2028.If you just take that number what they have told us is if we execute, it can be as big or bigger than $700 million that we anticipate doing with them in 2027... more than half is for 2027. Less than half would be for 2028.
What quietly fell out of the story
Three things management stopped selling this quarter are as revealing as what it started selling. First, tariff refund. It was the single highest-momentum keyword in Generac's own Q2 keyword set; this quarter it is a technical footnote, cited only to explain that full-year margins carry a 150 basis point benefit from Q2 refunds and that Q4 gross margin moderates to 37%–38%. What was a tailwind has become a base effect to be explained away. Second, the energy storage / solar business. For multiple quarters the company anchored investors to "breakeven profitability" by 2027 as the north star. That phrase does not appear on this call. What appears instead is "we continue to recalibrate our investments in this market" — alongside lower storage shipments and cited "higher interest rates and a more challenging policy environment." The residential segment's 350 basis points of margin expansion came partly from cutting spend in the very business they used to promise would break even. Third, the residential narrative itself. The top keyword this quarter is return to strong growth — residential net sales up 9%, home standby up mid-teens, segment EBITDA margin 27.0% versus 23.4%. That is a real inflection off a genuinely soft 2025. But the fine print matters: activations returned to growth only in September, "for the first time since the second quarter of 25," and were nearly flat for the quarter because hurricane activity was historically quiet. The recovery is being funded by price and by an assumed normalization of outage activity, which has run below baseline for the better part of two years. Jagdfeld's own framing — "“I think we are closing in on 7% penetrated, about 6.75% of households that have the product” — Keith Housum, Analyst · 2026-10-28" — is a long-cycle argument, not a 2027 one.Two new risks the call introduced
The genuinely new item is prime power, the top keyword of the quarter. Asked whether hyperscalers want gas or bi-fuel instead of diesel, Jagdfeld conceded Generac has no product: "today, we do not have a product offering for that, and so that is not inclusive in anything that we are bidding today." He argues gas reciprocating engines are a bridge technology and that competitors are only adding capacity to existing lines. That may be right — but it is the first quarter where the market's fastest-moving adjacency was explicitly outside the company's product set. Second, the administration's executive action on foreign-produced components in the bulk power system. This is a direct threat to a single-source, non-US engine supply chain that Generac has repeatedly described as unconstrained. Jagdfeld's defense is technical and plausible: "“our generators are not connected to the grid. Connected to the facility. They are not grid connected.” — Aaron Jagdfeld, President and Chief Executive Officer · 2026-10-28" But it is a live regulatory dependency the company did not have to manage a year ago.That is a new tone. For a company booking non hyperscale orders from colocation developers with SPV structures — roughly $600 million of them in the last ninety days — exercising credit selectivity is prudent, and it is also an admission that the counterparty risk in this order book is not theoretical.If a customer comes in and they are unwilling to provide a corporate guarantee for an SPV, we are just — we are kind of at a point where we are like, appreciate your interest in the product, but if we cannot get comfortable with who the parent company is... we are not gonna do it.