Solaria (SPWR) Soars 8.59% on Sunder Energy Acquisition, Reaches 2025 High

Complete Solaria (SPWR) surged 8.59% to reach its highest level since September 2025, with an intraday gain of 23.31%. The rally followed the announcement of a strategic acquisition of Sunder Energy, a move poised to reshape the company’s market position and revenue streams.

The $40 million cash and 10 million-share deal positions SPWR as the fifth-largest U.S. solar company, leveraging Sunder Energy’s $74 million in 2025 sales contracts and $173 million in downstream EPC revenue potential. Immediate revenue contributions, including $18.5 million in Q4 2025, underscore the transaction’s near-term impact. The acquisition also expands SPWR’s geographic footprint to 45 states, doubling its sales force and adding 5,500 annual contracts, aligning with industry consolidation trends.

Operational synergies are expected to accelerate growth, particularly in high-growth markets like California and Texas. Sunder’s reliance on third-party ownership (TPO) systems benefits from ongoing ITC subsidies, ensuring policy certainty for its order book. The integration of Sunder’s EPC capabilities further diversifies SPWR’s revenue model, with half of the $173 million in EPC contracts projected to generate recurring income over time.

Management’s confidence, highlighted by CEO T.J. Rodgers, emphasizes the acquisition’s role in driving profitability. SPWR anticipates consecutive operating profits in Q3 and Q4 2025, reversing years of losses. Forward-looking guidance revisions and the integration of Sunder’s sales expertise and technology are expected to enhance efficiency and customer retention, reinforcing long-term value creation.

While short-term share dilution from the 10 million new shares may introduce volatility, the strategic alignment with market expansion and regulatory tailwinds positions SPWR for sustained growth. The transaction reflects broader industry dynamics, as smaller firms seek partnerships with publicly traded entities to scale operations. With a clear path to revenue diversification and margin expansion, SPWR’s stock trajectory appears supported by both immediate financial gains and long-term operational resilience.