Generac shares surge on Amazon data center power deal, Lennar and Fluence fall

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Generac, Lennar & Fluence market moves

Highlights

Generac shares soar 33% premarket as Amazon inks a $2.4 billion backup power generator deal with deliveries planned between 2027 and 2028, plus an option for Amazon to buy up to $340 million of Generac stock.
Lennar drops 1.2% after Q3 earnings of $1.19 per share miss the $1.28 analyst forecast, and revenue reaches $8.05 billion versus expected $8.23 billion.
Fluence Energy plunges 22% after slashing 2026 revenue outlook to $2.4 billion and forecasting a $200 million EBITDA loss, well below previous guidance.

Premarket movers across key sectors

As reported by CNBC, Generac shares jump 33% in premarket trading after the generator maker strikes a deal with Amazon to supply backup power generators for the technology group’s data centers. Initial deliveries are expected to total $2.4 billion between 2027 and 2028, and Generac also grants Amazon the right to buy up to $340 million worth of its stock.

Amazon shares rise 1.3% in premarket activity, reflecting a more limited move than Generac despite the scale of the agreement. The deal underscores continuing investment tied to data center infrastructure and power resilience.

Lennar shares slip 1.2% after the homebuilder reports third-quarter results that miss analyst expectations. Earnings come in at $1.19 per share, below the $1.28 forecast from analysts polled by FactSet, while revenue totals $8.05 billion against a consensus estimate of $8.23 billion.

Fluence Energy tumbles 22% after cutting its full-year outlook. The battery storage company now expects 2026 revenue of $2.4 billion, down from prior guidance of $2.9 billion to $3.1 billion, and projects a loss of $200 million before interest, taxes, depreciation and amortization, wider than its earlier guidance range of a $30 million loss to $10 million EBITDA.

Board changes and chip demand shape sentiment

Nike shares rise 1.5% after the sportswear company announces the appointment of Alexandre Arnault, Deputy CEO of LVMH’s Moët Hennessy, to its board. Nike says Arnault has built a reputation for helping global brands evolve, innovate and grow in a shifting market environment.

Arm Holdings gains roughly 4% after CEO Rene Haas tells CNBC’s Jim Cramer that he is increasingly confident the company can meet demand for its new data center chip. The move adds to signs that investor attention remains focused on semiconductor exposure to expanding data center spending.

In our earlier coverage of Amazon’s Generac deal, we explained how the companies paired a large data-center generator supply agreement with an equity-linked structure. Amazon received warrants to buy up to $340 million of Generac shares, while initial generator deliveries were projected to total about $2.4 billion in 2027–2028, highlighting rising demand for backup power as data center buildouts accelerate.

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