Generac Holdings Inc. (GNRC) saw its shares climb roughly 11% on Wednesday after the backup-power equipment manufacturer raised its full-year 2026 sales forecast, powered by surging demand from data center clients. The Waukesha, Wisconsin-based company reported first-quarter adjusted earnings of $1.80 per share, easily surpassing the $1.33 consensus estimate from LSEG, while revenue reached $1.06 billion, also ahead of expectations.
Net sales for the first quarter rose 12% year-over-year, with commercial and industrial external sales jumping approximately 28% to $510 million. This growth was largely fueled by orders from global data center operators, as cloud computing and artificial intelligence applications drive an insatiable need for reliable backup power. Residential external sales, however, edged up only 1% to $549 million, underscoring the uneven nature of the company's traditional home generator business.
Revised Guidance Reflects Stronger Commercial Pipeline
Generac now expects full-year net sales growth in the mid-to-high teens percentage range, a notable upgrade from its prior mid-teens forecast. The company also raised its adjusted EBITDA margin outlook to a range of 18.5% to 19.5%, up from the previous 18.0% to 19.0% target. EBITDA—a key metric that strips out financing and accounting charges—is closely watched by investors as a measure of core operating performance.
Chief Executive Aaron Jagdfeld told investors that Generac is in the "final stages of vendor approval" with several hyperscale customers, the massive cloud and internet companies that require enormous amounts of backup power. He noted that the company's backlog has grown, driven by both new contract wins and repeat business from existing data center clients.
Strategic Acquisitions and Segment Restructuring
Generac has been actively reshaping its business to capture more of the data center opportunity. On January 5, the company completed its acquisition of Allmand, a mobile power equipment manufacturer. Then, on April 1, it finalized the purchase of Enercon, a specialist in generator enclosures and switchgear—critical hardware for managing and protecting electrical systems.
In a related move, Generac revised its reporting structure effective March 31, shifting from Domestic and International segments to new Residential and Commercial & Industrial units. The company noted that the recast numbers are not restatements of prior financials but rather a new way to reflect its evolving business mix.
Market Context and Competitive Landscape
The shift toward data center power solutions is not unique to Generac. In February, Cummins highlighted strong demand for backup power in its Distribution and Power Systems units. Caterpillar recently secured a data-center power deal with Joule Capital Partners, while Eaton has expanded its presence in the sector through acquisitions covering both power and cooling. Generac's updated forecast positions it squarely in this growing market.
The company's commercial and industrial external sales came within $40 million of residential external sales during the quarter, signaling a rapidly shifting revenue mix. This trend is particularly significant given that Generac's fourth-quarter results were dragged down by fewer power outages and softer demand for home standby and portable generators, causing it to miss estimates. The strong data center performance in Q1 has therefore taken on extra weight for investors evaluating whether commercial growth can offset the volatility of weather-driven residential sales.
Risks and Outlook
Despite the upbeat guidance, Generac acknowledged several risks. Residential sales barely budged last quarter, and the updated forecast does not include any potential boost from a long-term hyperscale deal. The company flagged potential headwinds from tariffs, component shortages, the frequency of power outages, and unpredictable data center growth that could all weigh on future results.
Generac shares opened at $241.25 in New York trading, briefly touching an intraday high of $246.99. The stock's sharp move reflects investor optimism that the company is successfully pivoting from a weather-dependent residential generator maker to a key player in the data center infrastructure ecosystem.
