Generac Holdings Inc. (NYSE:GNRC) has fallen a long way from the excitement that carried its shares to a 52-week high of $296.44 on June 25. By August 20, the stock was down just over 30% from that peak. Yet the business underneath Generac is developing a rather huge data center opportunity for a company still best known for backup generators.
A $1.6 Billion Data Center Backlog
On July 29, Generac said its data center backlog had reached around $1.6 billion after roughly $1 billion of additional orders since its previous update. Its first hyperscale customer has committed nearly $700 million of volume for 2027. Generac also signed a global supply agreement with a second hyperscaler on June 24, although product-specific terms for 2027 and 2028 are still being negotiated and are not included in the $1.6 billion backlog.

The shift is already showing up in results, with Q2 Commercial & Industrial sales rising 29% year over year to $556 million, and the company citing ramping data center revenue as the main driver of core segment growth. C&I sales are now expected to grow in the low-30% range for 2026. Reuters reported on August 19 that Generac is investing about $250 million to expand commercial generator production for data centers and plans to add roughly 1,000 workers.
Backlog Still Has to Become Earnings
The obvious risk is that backlog is not the same thing as recognized revenue. Generac Holdings Inc. (NYSE:GNRC) is committing capital and manufacturing capacity into a data center boom that could eventually cool, while the second hyperscaler agreement still lacks finalized product volumes.
The company also remains exposed to its residential business, where Q2 external sales slipped about 2%. Generac’s future earnings mix is changing quickly, but investors are paying for that transition before most of the 2027 revenue arrives.
Hedge Fund Ownership Keeps Growing
Insider Monkey’s database showed 75 hedge fund portfolios held GNRC at the end of Q2 2026, up from 68 in Q1 2026. The growth came even as several large holders trimmed their positions. Ariel Investments cut its stake 23%, D.E. Shaw 27%, and Arrowstreet Capital 15%, while Park Presidio Capital increased its position 4%.
As of July 31, short interest stood at 2.05 million shares, or 3.56% of public float, with 1.6 days to cover.
The Bottom Line
Generac’s data center business has crossed the line from promising side project to serious growth driver. A $1.6 billion backlog and nearly $700 million of committed 2027 volume from one hyperscaler give the transformation real weight. The stock has already paid a price for the execution risk, while the hyperscale revenue ramp is still ahead.
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