SunPower (SPWR) Surges 2.05% on Sunder Energy Acquisition, Posts 13.07% Three-Day Rally

The share price of Complete Solaria (SPWR) surged 2.05% on Thursday, marking its third consecutive day of gains and a cumulative 13.07% rise over the past three trading sessions. Prices reached a peak not seen since October 2025, with an intraday rally of 10.77%, driven by strategic momentum and investor optimism.

Recent developments underscore the company’s transformative trajectory. The acquisition of Sunder Energy—a $40 million cash-and-stock deal—has expanded SPWR’s market presence, integrating 46 megawatts of solar sales contracts and 1,734 employees into its operations. This move has positioned SunPower as the fifth-largest U.S. solar provider, with immediate revenue contributions of $18.5 million quarterly and a projected $247 million in total revenue from the combined entity. The expanded workforce and geographic footprint now span 45 states, enhancing scalability and customer acquisition potential.

Financial synergies from the acquisition are expected to bolster profitability. SunPower’s Q2 2025 results highlighted a 43% gross margin, up from 39% in Q1, attributed to optimized project selection and cost-cutting measures. Management emphasized the reduced reliance on subsidies like the ITC, signaling a shift toward sustainable, unsubsidized growth. The acquisition also aligns with SunPower’s long-term goal of becoming a low-cost solar provider, supported by a new finance center in Chennai and inclusion in major market indices.

Leadership and investor confidence are central to the company’s renewed momentum. CEO T.J. Rodgers has steered SunPower from a four-year period of losses to its first profitable quarter in Q1 2025. His strategic focus on high-margin markets and operational efficiency has attracted institutional attention, though challenges remain in addressing outdated perceptions of the firm’s financial health. Despite these hurdles, the stock’s valuation at 0.5x sales reflects undervaluation relative to industry peers.

Risks persist, including regulatory shifts and integration complexities. However, SunPower’s emphasis on cost efficiency and innovation positions it to navigate a post-subsidy market. Investors will closely watch Q4 2025 performance to gauge the acquisition’s long-term impact on revenue and market share.