First Solar (FSLR) shares decline after revenue outlook and Q4 earnings miss
First Solar's shares declined on Tuesday after the company provided a 2026 revenue outlook that fell below market expectations, compounded by a fourth-quarter 2025 earnings per share miss. The solar module manufacturer's stock closed down 3.2% at $186.25, following a previous close of $192.49.
The company guided 2026 net sales to a range of $4.9 billion to $5.2 billion, significantly below the $6.1 billion analysts had anticipated. This forward guidance included projected warehousing and underutilisation costs of $115 million to $155 million. This overshadowed a solid fourth quarter of 2025, which saw sales increase by 11.2% to $1.68 billion and net profit rise by 32% to $520.88 million.
Management cited ongoing risks from tighter trade enforcement, potential retroactive tariffs, and Section 232 actions as factors pressuring investor sentiment. Production curtailments in Malaysia and Vietnam, alongside a strategic shift towards U.S. manufacturing, also contributed to the cautious outlook.
Why Future Outlooks Can Overshadow Current Success
First Solar designs and manufactures solar modules, the fundamental components that convert sunlight into electricity. Their primary customers are large-scale solar project developers, utilities, and commercial enterprises seeking to implement significant solar power installations. The company generates revenue by selling these modules and providing associated services for these substantial projects.
The main driver behind First Solar's share movement was a significant mismatch between the company's own 2026 revenue projections and what financial analysts had been expecting. Analysts construct detailed financial models based on their research and assumptions about a company's future performance. When First Solar issued its official guidance for 2026 net sales, forecasting a range of $4.9 billion to $5.2 billion, it fell considerably short of the $6.1 billion analysts had anticipated. This substantial difference signals that the company itself foresees a less buoyant future than the market had priced in, partly due to expected warehousing and underutilisation costs of $115 million to $155 million, despite a strong fourth quarter in 2025.
This downward revision of future expectations directly impacted investor sentiment, causing First Solar's shares to close down 3.2% at $186.25 on 21 April 2026, a notable drop from its previous close of $192.49.
Consider a film studio announcing its slate of movies for the next two years. If critics and fans were expecting a blockbuster lineup with several major releases and the studio instead reveals a smaller, less ambitious schedule, the excitement for the future dims. Even if their most recent film was a critical and commercial success, the revised outlook for upcoming productions would lead to disappointment and a re-evaluation of the studio's future prospects.

First Solar
First Solar, Inc. (FSLR) specialises in photovoltaic (PV) solar energy solutions, operating across key international markets including the United States, Japan, France, Canada, India, and Australia. Established in 1999, the company engineers, produces, and distributes cadmium telluride solar modules designed to convert sunlight into electrical power. Its diverse client base encompasses system developers and operators, utility providers, independent power producers, and commercial and industrial enterprises, alongside other system owners. Headquartered in Tempe, Arizona, First Solar plays a significant role in the solar energy industry.